Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Jefferson Co., Montana, USA

Oldest recorded age at locality: 135
Youngest recorded age at locality: 5.3

mindat Locality ID: 23949
mindat URL: http://www.mindat.org/loc-23949.html

Tectonic Settings:

Total number of sublocalities beneath "Jefferson Co., Montana, USA": 788
Total number of bottom-level sublocalities: 740

Number of Child Localities: 184
Child Localities:
19 Mile Nickel Deposit
A. G. Lewis Prospect
Alahambra Mining District (Golconda Mining District)
Alhambra
Amazon Mining District
Andretti Mine
Andy Claim Group
Ann Kinzer Mine
Badger
Basin
Basin District
Basin Townsite Occurrence
Belle (Lost; Best)
Bernice
Big & Little Goldie
Big Foot Mining District (State Creek Mining District)
Big Mary Mine
Big Tizer Wildcat Mine
Bigfoot Creek Place
Blackbird Property
Blue Boy Mine
Bonanza Mine
Boulder Batholith
Boulder Mercury Group
Boulder Mountains Area
Buffalo Gulch Prospect
Calico Clay Pit
Calvin Mine
Cardwell Pit
Cascade Prospect
Casey Meadows Prospect
Cataract Mining District (Comet Mining District; Basin Mining District)
Christmas Gift Mine
Clancy-Lump Gulch Mining District
Clark Gulch Quarry
Clark Lead Prospect
Colorado Mining District (Prickly Pear Mining District; Corbin Mining District)
Copper Queen
Crow Creek
Crow Peak
Dead End
Dobler Mine
Dora Leigh
Dumos
Dunbar Calcite Property
Eagle Hill And Iron Bar Lodes Prospect
East Helena Tuff Occurrence
Easy Money Group
Economy (Last Chance)
Edge No. 1; Norway No. 6
Elk Park Mining District
Elkhorn Creek Placer
Elkhorn Mining District
Elliston Mining District
Euclid Mine
Eureka (Montana Chicago)
Franklin Occurrence
Gold Series Big Mary Claim
Gold Valley
Golden Dollar Prospect
Golden Gate Mine
Greenleaf Mines
Hardmore Group
Harris Quarry
Helena
Helena Mining District
Helens Pride Mine
High Grade And Percy Lodes
High Ridge Prospect
Homestake Mining District
Hope
Ida
Infinite
Invay Group
Iron King
Iron Mine (MRDS - 10256543)
Iron Side
Jack Mountain Iron Occurrence
John
Katie Mine
Katiedid Prospect
Kellers Hematite Deposit
Kennedy Occurrence
La Hood Gypsum Deposit
Leadville Mining District
Legal Tender
Lena Mine
Lewis Kountz Ranch Occurrence (Atlas)
Limespur Deposit
Limespur Quarry
Limestone Occurrence (MRDS - 10172789)
Limestone Occurrence (MRDS - 10245482)
Limestone Prospect (MRDS - 10221805)
Little Pipestone Mining District
Lone Bear Prospect Sport Lode (Sport Lode)
Lone Tree Occurrence
Lowland Mining District
Mastodon Prospect
Mc Clellan Mining District
McCauley Lead Mine
McClellan Creek District
McClellan Creek Placer
McCormick Prospect
Merry Widow
Mid Nite No. 2 Claim
Mitchell Creek Placer
Montana City
Montana City Kaiser Ceme
Montana City Pit
Montana City Placer Mine
Montana Metals Inc. Mine
Monte Carlo
Moonlight Claims
Mount Queen Mine
Muskrat Creek Placer
Negro Hollow
New Bald Eagle Mine
New Stake Mine
Old Baldy Group
Old Faithful Prospect
P & L Mine
Passover
Peterson Farm Occurrence
Piermont No. 1 East
Pilot Prospect
Pipestone Hot Springs
Pipestone Mining District
Pipestone Springs Deposit
Plymouth Mine
Prospector's Dream
R. D. Potee Prospect
Red Rock Mine
Road Junction Prospect
Saint Joseph Claim
Sappington Canyon
Saratoga
Silver Hill Prospect (Valley View; J & F No. 1)
Skookum Occurrence
South Hidden Lake Prospect
Spar
Spire Rock Flats
Strawberry Butte
Sullivan Occurrence
Summit Prospect (MRDS - 10134445)
Tacoma
Thomas Cruse Occurrence
Three Brothers
Three Forks
Tizer Mining District (Wilson Creek Mining District)
Top Prospect
Townsend Valley Occurrence
Trevillion-Johnson Memorial Company
Twilight Claims Group
Unknown Uranium Occurrence (MRDS - 10019544)
Unnamed Brick Clay (MRDS - 10270172)
Unnamed Brick Clay Occurrence (MRDS - 10221810)
Unnamed Brick Clay Occurrence (MRDS - 10270300)
Unnamed Fire Clay Occurrence (MRDS - 10294868)
Unnamed Gypsum (MRDS - 10245921)
Unnamed Kaolin Occurrence (MRDS - 10196428)
Unnamed Phosphates Occurrence (MRDS - 10172818)
Unnamed Placer (MRDS - 10172885)
Unnamed Placer (MRDS - 10294709)
Unnamed Uranium Occurrence (MRDS - 10196394)
Unnamed Uranium Occurrence (MRDS - 10245897)
Unnamed Uranium Occurrence (MRDS - 10256706)
Upper Tizer Lake Prospect
Upper Wilson Creek
Valerie And Particia Claims
Warm Springs Gulch Placer (Warm Springs Creek Placer)
Welch Placer Quarry
West Basin Area
West Ridge Prospect
Western Hope Prospect
Weston Mine
White Swan Mine
Whitehall Mining District (Cardwell Mining District)
Whitetail Mining District
Wickes Mining District
William Barth Claims (Blue; Flume; Mossback; Speculator; North Star)
Wilson Creek & Crow Creek
Winters Camp
Woodville Deposit
Zalinski Prospect

Latitude: 46°16'11"N
Longitude: 112°1'51"W
Decimal Degree (lat, lon): 46.269722222222,-112.03083333333

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Acanthite	Allophane	Alunite	Amorphous	Amphibole	Andalusite	Apatite	Aragonite	Arsenic	Arsenopyrite
Astrophyllite	Autunite	Axinite	Baryte	Beryl	Bismutite	Bournonite	Brookite	Buckhornite	Calcite
Chalcanthite	Chalcopyrite	Chlorite	Clay	Clinozoisite	Columbite	Copper	Corundum	Covellite	Danburite
Descloizite	Diaspore	Digenite	Dumortierite	Enargite	Epidote	Feldspar	Fluorite	Garnet	Gypsum
Kaolinite	Lepidocrocite	Linarite	Malachite	Marcasite	Melanterite	Melonite	Meneghinite	Meta-autunite	Mica
Molybdenite	Nickeline	None	Not in a structural group	Phenakite	Phosphuranylite	Polybasite	Prehnite	Pyrite	Pyroxene
Quartz	Rhodonite	Rocksalt	Rutile	Scapolite	Scheelite	Smectite-vermiculite	Sphalerite	Spinel	Stannite
Stibnite	Tetradymite	Tetrahedrite	Titanite	Topaz	Tourmaline	Vesuvianite	Wurtzite	Zircon

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Ag Al As Au B Ba Be Bi C Ca Cl Cu F Fe H Hg K Mg Mn Mo Na Nb Ni O P Pb Pt S Sb Si Sn Sr Te Ti U V W Y Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Allophane Alunite Amorphous Amphibole Andalusite Apatite Aragonite Arsenic Arsenopyrite
Astrophyllite Autunite Axinite Baryte Beryl Bismutite Bournonite Brookite Buckhornite Calcite
Chalcanthite Chalcopyrite Chlorite Clay Clinozoisite Columbite Copper Corundum Covellite Danburite
Descloizite Diaspore Digenite Dumortierite Enargite Epidote Feldspar Fluorite Garnet Gypsum
Kaolinite Lepidocrocite Linarite Malachite Marcasite Melanterite Melonite Meneghinite Meta-autunite Mica
Molybdenite Nickeline None Not in a structural group Phenakite Phosphuranylite Polybasite Prehnite Pyrite Pyroxene
Quartz Rhodonite Rocksalt Rutile Scapolite Scheelite Smectite-vermiculite Sphalerite Spinel Stannite
Stibnite Tetradymite Tetrahedrite Titanite Topaz Tourmaline Vesuvianite Wurtzite Zircon

139 IMA Minerals at location:

Acanthite ()*	Aikinite ()*	Alabandite ()*	Albite ()*	Anatase ()*
Andalusite ()*	Anglesite ()*	Ankerite ()*	Anorthite ()*	Aragonite ()*
Arsenopyrite ()*	Astrophyllite ()*	Aurichalcite ()*	Autunite ()*	Axinite-(Fe) ()*
Azurite ()*	Baryte ()*	Bertrandite ()*	Beryl ()*	Bismuth ()*
Bismuthinite ()*	Bismutite ()*	Bornite ()*	Boulangerite ()*	Bournonite ()*
Brookite ()*	Buckhornite ()*	Calaverite ()*	Calcite ()*	Cassiterite ()*
Cerussite ()*	Chalcanthite ()*	Chalcocite ()*	Chalcopyrite ()*	Chlorargyrite ()*
Chrysocolla ()*	Cinnabar ()*	Clinochlore ()*	Coloradoite ()*	Copper ()*
Corundum ()*	Cosalite ()*	Covellite ()*	Cuprite ()*	Danburite ()*
Descloizite ()*	Dickite ()*	Digenite ()*	Diopside ()*	Dolomite ()*
Dumortierite ()*	Enargite ()*	Epidote ()*	Fluorapatite ()*	Fluorite ()*
Friedrichite ()*	Galena ()*	Gladite ()*	Goethite ()*	Gold ()*
Grossular ()*	Gypsum ()*	Hematite ()*	Hemimorphite ()*	Ilmenite ()*
Jarosite ()*	Kaolinite ()*	Krennerite ()*	Krupkaite ()*	Laumontite ()*
Lepidocrocite ()*	Linarite ()*	Lindströmite ()*	Magnesio-hornblende ()*	Magnesite ()*
Magnetite ()*	Malachite ()*	Marcasite ()*	Meionite ()*	Melanterite ()*
Melonite ()*	Meta-autunite ()*	Metatorbernite ()*	Metauranocircite-I ()*	Metazeunerite ()*
Microcline ()*	Mimetite ()*	Molybdenite ()*	Montmorillonite ()*	Muscovite ()*
Opal ()*	Orthoclase ()*	Uranophane-β ()*	Petzite ()*	Phenakite ()*
Phosphuranylite ()*	Polybasite ()*	Powellite ()*	Prehnite ()*	Proustite ()*
Pyrargyrite ()*	Pyrite ()*	Pyrolusite ()*	Pyrrhotite ()*	Quartz ()*
Rhodochrosite ()*	Rhodonite ()*	Rosasite ()*	Rutile ()*	Samarskite-(Y) ()*
Scheelite ()*	Schorl ()*	Siderite ()*	Silver ()*	Smithsonite ()*
Sperrylite ()*	Spessartine ()*	Sphalerite ()*	Spinel ()*	Stannite ()*
Stibnite ()*	Strontianite ()*	Sylvanite ()*	Tellurium ()*	Tellurobismuthite ()*
Tennantite-(Fe) ()*	Tenorite ()*	Tetradymite ()*	Tetrahedrite-(Zn) ()*	Titanite ()*
Topaz ()*	Uraninite ()*	Uranocircite-II ()*	Uranophane-α ()*	Vanadinite ()*
Vesuvianite ()*	Zeunerite ()*	Zircon ()*	Zoisite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Acanthite ()*	Acanthite	Ag₂S	60	5.3	8	229076,229123,229287,229289,229297,229320,229570,229716	2793
Aikinite ()*	Meneghinite	CuPbBiS₃			1	229716	315
Alabandite ()*	Rocksalt	MnS	60	5.3	2	228997,229758	312
Albite ()*	Feldspar	Na(AlSi₃O₈)			15	229070,229076,229093,229095,229096,229098,229099,229100,229103,229104,229106,229554,229556,229657,229717	8803
Anatase ()*	Not in a structural group	TiO₂			5	229069,229099,229100,229101,229106	2162
Andalusite ()*	Andalusite	Al₂SiO₅			1	229476	1310
Anglesite ()*	Baryte	Pb(SO₄)	60	5.3	5	229004,229047,229343,229446,229758	2734
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂			5	229110,229187,229213,229287,229297	3092
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)			1	229076	1036
Aragonite ()*	Aragonite	Ca(CO₃)	60	5.3	3	229320,229445,229446	3250
Arsenopyrite ()*	Arsenopyrite	FeAsS	60	5.3	7	229076,229123,229327,229448,229472,229716,229758	9052
Astrophyllite ()*	Astrophyllite	K₂NaFe²⁺₇Ti₂(Si₄O₁₂)₂O₂(OH)₄F			3	229069,229099,229100	161
Aurichalcite ()*	None	(Zn,Cu)₅(CO₃)₂(OH)₆			1	229446	919
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	60	5.3	2	229076,229320	1272
Axinite-(Fe) ()*	Axinite	Ca₄Fe²⁺₂Al₄[B₂Si₈O₃₀](OH)₂			3	229069,229103,229657	260
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂			1	229446	5509
Baryte ()*	Baryte	Ba(SO₄)			13	229040,229041,229044,229076,229148,229184,229297,229390,229400,229709,229711,229716,229744	11547
Bertrandite ()*	Not in a structural group	Be₄Si₂O₇(OH)₂			2	229069,229100	606
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈			2	229069,229100	4286
Bismuth ()*	Arsenic	Bi			1	229391	1966
Bismuthinite ()*	Stibnite	Bi₂S₃	60	5.3	5	229113,229442,229445,229716,229758	1935
Bismutite ()*	Bismutite	Bi₂O₂(CO₃)			1	229442	716
Bornite ()*	None	Cu₅FeS₄			3	229337,229343,229716	5516
Boulangerite ()*	None	Pb₅Sb₄S₁₁			1	229129	843
Bournonite ()*	Bournonite	CuPbSbS₃	60	5.3	4	229404,229445,229446,229758	1089
Brookite ()*	Brookite	TiO₂			4	229069,229100,229101,229106	700
Buckhornite ()*	Buckhornite	(Pb₂BiS₃)(AuTe₂)			1	229716	13
Calaverite ()*	Melonite	AuTe₂			1	229716	361
Calcite ()*	Calcite	Ca(CO₃)	82.44	62.44	19	228997,229071,229110,229226,229255,229287,229288,229309,229341,229342,229343,229390,229424,229442,229446,229554,229570,229725,229736	27770
Cassiterite ()*	Rutile	SnO₂			1	229131	5171
Cerussite ()*	Aragonite	Pb(CO₃)	60	5.3	4	229207,229227,229446,229758	4979
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O			2	229350,229716	925
Chalcocite ()*	None	Cu₂S			9	229074,229355,229390,229404,229611,229694,229716,229720,229725	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	60	5.3	93	228984,228987,228997,229015,229016,229020,229022,229024,229025,229028,229032,229034,229047,229057,229058,229074,229076,229087,229110,229113,229123,229124,229129,229130,229142,229145,229146,229155,229158,229161,229165,229173,229174,229179,229187,229190,229192,229194,229207,229208,229211,229213,229218,229226,229241,229243,229255,229262,229268,229273,229288,229291,229296,229299,229303,229320,229321,229322,229323,229337,229342,229346,229347,229350,229351,229355,229362,229388,229390,229391,229397,229400,229404,229431,229442,229446,229448,229472,229611,229624,229626,229667,229706,229711,229716,229720,229736,229743,229744,229758,229760,229761,229762	27198
Chlorargyrite ()*	Rocksalt	AgCl			1	229446	1382
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O			3	229152,229438,229446	3531
Cinnabar ()*	None	HgS			2	228981,229083	2600
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈			1	229617	1756
Coloradoite ()*	Sphalerite	HgTe			1	229716	169
Copper ()*	Copper	Cu			4	228993,229446,229709,229723	3846
Corundum ()*	Corundum	Al₂O₃			2	229434,229560	1797
Cosalite ()*	None	Pb₂Bi₂S₅			2	229093,229100	344
Covellite ()*	Covellite	CuS	60	5.3	7	229047,229207,229288,229320,229446,229716,229758	4165
Cuprite ()*	Not in a structural group	Cu₂O			1	229446	2970
Danburite ()*	Danburite	CaB₂Si₂O₈			2	229069,229100	148
Descloizite ()*	Descloizite	PbZn(VO₄)(OH)			1	229446	378
Dickite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			1	229716	651
Digenite ()*	Digenite	Cu_1.8S			1	229716	1027
Diopside ()*	Pyroxene	CaMgSi₂O₆			4	229071,229442,229445,229554	4135
Dolomite ()*	None	CaMg(CO₃)₂			6	229191,229445,229446,229700,229716,229739	9895
Dumortierite ()*	Dumortierite	AlAl₆BSi₃O₁₈			2	229160,229664	231
Enargite ()*	Enargite Wurtzite	Cu₃AsS₄			2	229337,229637	910
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)			8	229093,229098,229100,229101,229103,229554,229556,229617	8173
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			2	229103,229716	2740
Fluorite ()*	Fluorite	CaF₂			2	229069,229716	9617
Friedrichite ()*	Meneghinite	Cu₅Pb₅Bi₇S₁₈			1	229716	43
Galena ()*	Rocksalt	PbS	82.44	5.3	161	228987,228990,228996,228997,229002,229004,229015,229016,229018,229019,229020,229022,229024,229025,229027,229028,229032,229033,229034,229047,229057,229058,229074,229076,229085,229110,229113,229123,229124,229129,229130,229138,229142,229145,229146,229148,229152,229155,229157,229158,229161,229164,229165,229173,229174,229179,229181,229182,229187,229190,229192,229193,229194,229196,229203,229204,229206,229207,229208,229211,229213,229214,229215,229216,229218,229220,229222,229225,229226,229227,229241,229243,229250,229255,229262,229268,229273,229275,229280,229284,229286,229287,229288,229289,229291,229296,229297,229299,229303,229305,229309,229311,229313,229320,229321,229322,229323,229324,229327,229330,229342,229343,229346,229347,229348,229350,229355,229362,229388,229390,229391,229395,229397,229400,229404,229431,229443,229445,229446,229447,229448,229463,229472,229492,229493,229494,229495,229537,229553,229611,229624,229626,229667,229699,229703,229705,229706,229711,229716,229719,229720,229722,229725,229727,229728,229729,229733,229735,229736,229740,229741,229743,229744,229745,229750,229754,229758,229759,229760,229761,229762	24243
Gladite ()*	Meneghinite	CuPbBi₅S₉			1	229716	67
Goethite ()*	Diaspore	FeO(OH)			6	229069,229070,229101,229107,229556,229744	7437
Gold ()*	Copper	Au	82.44	5.3	180	228987,228996,229002,229004,229013,229015,229016,229018,229019,229020,229022,229023,229024,229025,229026,229027,229028,229034,229047,229048,229055,229058,229074,229079,229081,229085,229087,229088,229091,229110,229111,229112,229113,229124,229126,229127,229129,229130,229131,229138,229140,229141,229142,229143,229144,229145,229146,229148,229149,229153,229155,229159,229161,229162,229164,229165,229167,229168,229170,229172,229173,229176,229178,229179,229181,229182,229187,229189,229190,229193,229194,229195,229197,229198,229200,229203,229204,229205,229206,229207,229208,229211,229213,229214,229218,229220,229222,229226,229231,229235,229236,229237,229239,229240,229241,229242,229243,229250,229254,229255,229256,229260,229266,229274,229275,229280,229286,229288,229292,229294,229301,229302,229303,229305,229309,229324,229327,229330,229334,229336,229337,229339,229342,229343,229346,229352,229353,229355,229357,229360,229369,229373,229388,229390,229391,229395,229398,229399,229400,229404,229405,229408,229432,229442,229447,229448,229449,229499,229500,229501,229509,229512,229515,229537,229564,229566,229567,229569,229570,229609,229624,229635,229639,229640,229667,229668,229689,229702,229709,229714,229716,229722,229723,229736,229737,229754,229759,229760,229761,229762	30554
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃			4	229071,229442,229554,229616	1544
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			7	229341,229350,229373,229709,229716,229719,229741	6890
Hematite ()*	Corundum	Fe₂O₃			5	229069,229093,229190,229457,229716	14640
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O			1	229446	1689
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			3	229069,229100,229657	5433
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆			1	229390	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	60	5.3	6	229076,229191,229320,229390,229707,229716	5591
Krennerite ()*	None	Au₃AgTe₈			1	229716	111
Krupkaite ()*	Meneghinite	PbCuBi₃S₆			1	229716	80
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O			1	229069	1271
Lepidocrocite ()*	Lepidocrocite	Fe³⁺O(OH)			1	229069	581
Linarite ()*	Linarite	CuPb(SO₄)(OH)₂			1	229446	987
Lindströmite ()*	Meneghinite	Pb₃Cu₃Bi₇S₁₅			1	229716	38
Magnesio-hornblende ()*	Amphibole	Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂			1	229076	238
Magnesite ()*	Calcite	Mg(CO₃)			1	229716	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			4	229069,229106,229445,229716	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	60	5.3	17	229027,229101,229142,229152,229203,229222,229299,229320,229343,229438,229442,229446,229447,229554,229712,229716,229725	12537
Marcasite ()*	Marcasite	FeS₂			4	229113,229243,229472,229716	5674
Meionite ()*	Scapolite	Ca₄Al₆Si₆O₂₄(CO₃)			1	229616	176
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O			2	229719,229741	915
Melonite ()*	Melonite	NiTe₂			1	229716	207
Meta-autunite ()*	Meta-autunite	Ca(UO₂)₂(PO₄)₂·6H₂O	60	5.3	1	229320	388
Metatorbernite ()*	None	Cu(UO₂)₂(PO₄)₂·8H₂O	60	5.3	2	229076,229320	443
Metauranocircite-I ()*	None	Ba(UO₂)₂(PO₄)₂·6H₂O	60	5.3	1	229320	38
Metazeunerite ()*	None	Cu(UO₂)₂(AsO₄)₂·8H₂O	60	5.3	1	229320	182
Microcline ()*	Feldspar	K(AlSi₃O₈)			15	229070,229093,229096,229098,229099,229100,229101,229103,229104,229106,229554,229556,229617,229657,229716	4924
Mimetite ()*	Apatite	Pb₅(AsO₄)₃Cl			1	229446	1107
Molybdenite ()*	Molybdenite	MoS₂	38.93	34.55	13	228984,228997,229069,229076,229087,229213,229280,229322,229323,229390,229397,229635,229716	5800
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O			1	229390	1508
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	60	5.3	19	229018,229025,229076,229093,229096,229098,229099,229100,229106,229160,229191,229220,229227,229288,229320,229390,229476,229716,229759	17380
Opal ()*	Amorphous	SiO₂·nH₂O	60	5.3	1	229320	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)			2	229076,229716	2349
Uranophane-β ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O	60	5.3	1	229320	144
Petzite ()*	None	Ag₃AuTe₂			1	229716	409
Phenakite ()*	Phenakite	Be₂(SiO₄)			1	229100	326
Phosphuranylite ()*	Phosphuranylite	KCa(H₃O)₃(UO₂)₇(PO₄)₄O₄·8H₂O	60	5.3	1	229320	182
Polybasite ()*	Polybasite	[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇]			3	229207,229226,229288	716
Powellite ()*	Scheelite	Ca(MoO₄)			2	229087,229636	494
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂			2	229069,229657	1898
Proustite ()*	None	Ag₃AsS₃			5	229129,229218,229237,229288,229390	733
Pyrargyrite ()*	None	Ag₃SbS₃			4	229076,229297,229390,229716	1425
Pyrite ()*	Pyrite	FeS₂	82.44	5.3	158	228984,228987,228997,229004,229009,229015,229016,229019,229020,229022,229024,229025,229027,229028,229033,229034,229047,229057,229058,229074,229076,229085,229087,229110,229113,229123,229124,229126,229129,229142,229144,229145,229146,229148,229152,229153,229155,229157,229158,229161,229165,229172,229173,229174,229179,229181,229187,229190,229192,229193,229194,229197,229198,229203,229204,229205,229206,229207,229208,229211,229213,229214,229218,229220,229222,229225,229226,229243,229250,229254,229255,229260,229262,229268,229275,229281,229284,229287,229289,229291,229297,229299,229303,229305,229309,229311,229313,229320,229321,229322,229323,229327,229330,229337,229342,229343,229346,229347,229348,229350,229357,229362,229373,229388,229390,229391,229395,229397,229400,229404,229431,229438,229439,229443,229445,229446,229447,229448,229463,229472,229494,229495,229499,229565,229566,229569,229570,229611,229626,229637,229667,229668,229699,229703,229706,229709,229711,229712,229714,229716,229719,229720,229722,229725,229728,229733,229736,229740,229741,229743,229744,229745,229750,229758,229759,229760,229761,229762	39462
Pyrolusite ()*	Rutile	MnO₂			6	229341,229342,229446,229711,229716,229736	3106
Pyrrhotite ()*	Nickeline	Fe₇S₈			2	229446,229716	9056
Quartz ()*	Quartz	SiO₂	135	5.3	185	228987,228996,228997,228999,229002,229004,229015,229016,229018,229020,229024,229025,229027,229028,229032,229033,229034,229040,229047,229057,229058,229070,229074,229076,229087,229093,229094,229095,229096,229097,229098,229099,229100,229101,229102,229103,229104,229106,229107,229110,229113,229123,229124,229126,229129,229130,229136,229142,229144,229145,229146,229148,229152,229153,229155,229157,229158,229160,229161,229165,229173,229174,229179,229181,229182,229187,229190,229191,229192,229193,229194,229196,229197,229198,229203,229204,229205,229206,229207,229208,229211,229213,229214,229215,229216,229218,229220,229222,229225,229226,229227,229237,229241,229243,229250,229255,229260,229270,229273,229275,229276,229280,229281,229284,229286,229288,229289,229291,229297,229299,229302,229303,229305,229309,229311,229313,229320,229323,229324,229327,229330,229337,229341,229342,229343,229346,229347,229348,229349,229350,229355,229357,229362,229388,229390,229391,229397,229400,229404,229431,229443,229445,229446,229447,229448,229463,229472,229499,229501,229518,229552,229554,229555,229556,229564,229566,229569,229570,229608,229635,229648,229657,229658,229667,229692,229699,229706,229709,229712,229714,229716,229717,229720,229722,229725,229733,229740,229743,229744,229750,229754,229759,229760,229761,229762	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)			11	228990,228997,229110,229187,229226,229305,229342,229343,229390,229711,229716	1711
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)			1	228997	969
Rosasite ()*	Malachite	CuZn(CO₃)(OH)₂			1	229446	454
Rutile ()*	Rutile	TiO₂			4	229069,229096,229100,229716	5614
Samarskite-(Y) ()*	Columbite	YFe³⁺Nb₂O₈			1	229076	353
Scheelite ()*	Scheelite	Ca(WO₄)			4	229069,229087,229635,229636	4894
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)			11	229093,229096,229099,229100,229101,229106,229227,229390,229448,229472,229617	2705
Siderite ()*	Calcite	Fe(CO₃)	82.44	62.44	8	229024,229146,229148,229226,229250,229280,229309,229390	6417
Silver ()*	Copper	Ag			19	229076,229131,229214,229218,229222,229226,229446,229448,229518,229570,229608,229609,229702,229709,229721,229723,229736,229737,229742	5186
Smithsonite ()*	Calcite	Zn(CO₃)			2	229110,229446	2473
Sperrylite ()*	Pyrite	PtAs₂			1	229689	337
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃			4	229069,229093,229099,229100	1214
Sphalerite ()*	Sphalerite	ZnS	82.44	5.3	124	228987,228990,228996,228997,229004,229015,229016,229018,229020,229024,229025,229027,229028,229032,229033,229034,229047,229057,229074,229110,229113,229123,229126,229129,229130,229138,229142,229145,229146,229148,229152,229155,229157,229158,229164,229165,229179,229181,229182,229187,229192,229193,229194,229196,229203,229206,229207,229208,229213,229214,229218,229220,229222,229225,229226,229227,229250,229255,229260,229273,229275,229280,229284,229286,229289,229291,229296,229297,229299,229303,229305,229309,229311,229313,229320,229322,229323,229324,229327,229330,229342,229343,229346,229347,229348,229350,229355,229362,229388,229390,229391,229395,229397,229400,229404,229431,229443,229445,229446,229448,229463,229472,229492,229493,229494,229495,229553,229667,229699,229703,229706,229711,229716,229720,229722,229725,229728,229736,229744,229758,229759,229760,229761,229762	21482
Spinel ()*	Spinel	MgAl₂O₄			1	229554	1934
Stannite ()*	Stannite Sphalerite	Cu₂FeSnS₄			1	229716	668
Stibnite ()*	Stibnite	Sb₂S₃			1	228987	3418
Strontianite ()*	Aragonite	Sr(CO₃)			1	229716	589
Sylvanite ()*	Melonite	AgAuTe₄			1	229716	337
Tellurium ()*	None	Te			1	229716	190
Tellurobismuthite ()*	Tetradymite	Bi₂Te₃			1	229716	276
Tennantite-(Fe) ()*	Tetrahedrite	Cu₆(Cu₄Fe₂)As₄S₁₃			3	229303,229346,229716	1803
Tenorite ()*	None	CuO			1	229087	1101
Tetradymite ()*	Tetradymite	Bi₂Te₂S			4	229442,229445,229446,229716	510
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	60	5.3	43	229024,229025,229047,229057,229110,229113,229124,229146,229153,229158,229165,229174,229187,229206,229207,229208,229213,229214,229243,229250,229255,229280,229288,229297,229303,229323,229327,229337,229343,229355,229362,229390,229391,229400,229445,229446,229494,229495,229716,229758,229759,229760,229762	5317
Titanite ()*	Titanite	CaTi(SiO₄)O			11	229070,229098,229100,229101,229103,229104,229106,229554,229617,229657,229717	4899
Topaz ()*	Topaz	Al₂SiO₄F₂			4	229069,229093,229094,229658	1476
Uraninite ()*	Fluorite	UO₂	135	5.3	8	229076,229123,229146,229213,229276,229281,229289,229320	2718
Uranocircite-II ()*	None	Ba(UO₂)₂(PO₄)₂·10H₂O	60	5.3	1	229320	89
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O	60	5.3	3	229076,229260,229320	890
Vanadinite ()*	Apatite	Pb₅(VO₄)₃Cl			1	229446	605
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀			2	229071,229616	1395
Zeunerite ()*	Autunite	Cu(UO₂)₂(AsO₄)₂·12H₂O			1	229076	185
Zircon ()*	Zircon	Zr(SiO₄)			3	229069,229100,229657	5251
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)			1	229616	1025

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Giersdorf_00000882	Boulder batholith in western Montana extends from a few miles south of Helena to about 20 miles south of Butte. The northern part of the hatholith includes most of the batholith north of the latitude of Boulder and a narrow strip near the east margin of the batholith south of Boulder. This area lies between the Elkhorn mountains on the east and the rather broad, high-level surface making up the Continental Divide on the west. Although the area is mountainous, the topography is not rugged but is characterized by smoothly rounded ridges commonlya bout 1,000 feet above the major valleys. Most of the higher valleys were occupied by glaciers in the Pleistocene epoch, but typical alpine cirques are rare. The localities listed here are the Uranium deposits found within the Boulder Batholith.

Age ID

Locality Notes

Giersdorf_00000882

Boulder batholith in western Montana extends from a few miles south of Helena to about 20 miles south of Butte. The northern part of the hatholith includes most of the batholith north of the latitude of Boulder and a narrow strip near the east margin of the batholith south of Boulder. This area lies between the Elkhorn mountains on the east and the rather broad, high-level surface making up the Continental Divide on the west. Although the area is mountainous, the topography is not rugged but is characterized by smoothly rounded ridges commonlya bout 1,000 feet above the major valleys. Most of the higher valleys were occupied by glaciers in the Pleistocene epoch, but typical alpine cirques are rare. The localities listed here are the Uranium deposits found within the Boulder Batholith.

7 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Sample Num	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
PorphCu-00680	38.93	34.55	38.36±0.57 – 35.98±1.43					Chalcopyrite, Molybdenite, Pyrite	Cu	208399	Beaverton Cu Deposit, Alahambra Mining District (Golconda Mining District), Jefferson Co., Montana, USA	Beavertown	Singer et al. (2008)		USGSOFR2008_1155
USGS-U-Th-Pb-00942_206_238	50	50	50	206_238		uraninite, pitchblende				161573	G. Washington Mine (Member Of Presidents Group), Clancy-Lump Gulch Mining District, Jefferson Co., Montana, USA		USGS-U-Th-Pb		USGS-U-Th-Pb
USGS-U-Th-Pb-00942_207_206	135	135	135	207_206		uraninite, pitchblende				161573	G. Washington Mine (Member Of Presidents Group), Clancy-Lump Gulch Mining District, Jefferson Co., Montana, USA		USGS-U-Th-Pb		USGS-U-Th-Pb
USGS-U-Th-Pb-00942_207_235	55	55	55	207_235		uraninite, pitchblende				161573	G. Washington Mine (Member Of Presidents Group), Clancy-Lump Gulch Mining District, Jefferson Co., Montana, USA		USGS-U-Th-Pb		USGS-U-Th-Pb
USGS-Rb-Sr-02859	82.44	62.44	72.44±10	Rb-Sr	age of intrusion	biotite				164311	Roosevelt Mine, Clancy-Lump Gulch Mining District, Jefferson Co., Montana, USA		USGS-Rb-Sr		USGS-Rb-Sr
Giersdorf_00000882	60	5.3	60-paleocene			alaskite			U	166261	W. Wilson Mine (Liverpool Mine), Clancy-Lump Gulch Mining District, Jefferson Co., Montana, USA	W. Wilson Mine	Becraft (1956)	10.2113/gsecongeo.51.4.362	EG51_362	The age for the Uranium deposits of the Boulder Batholith are described as being post-Alaskite of 60 Ma and pre-Dacite, which is described as being early Oligocene by one of the author's references up to Miocene by another.
NAVDAT-76260	81.6	79.2	80.4±1.2				76260			161264	Easter Lillie Mine (Ogle Mine), Pipestone Mining District, Jefferson Co., Montana, USA		NAVDAT		NAVDAT

Sample	Source Locality	Reference URL
R061082	Little Gem Mine, Boulder Batholith, Jefferson Co., Montana, USA	https://rruff.info/R061082

All locality data graciously provided by mindat.org

All age data...