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:
New World Mining District (Cooke Mining District), Park Co., Montana, USA

Oldest recorded age at locality: 2685.34
Youngest recorded age at locality: 2541.53

mindat Locality ID: 50309
mindat URL: http://www.mindat.org/loc-50309.html

Tectonic Settings:

Total number of sublocalities beneath "New World Mining District (Cooke Mining District), Park Co., Montana, USA": 69
Total number of bottom-level sublocalities: 66

Number of Child Localities: 65
Child Localities:
Absaroka Wilderness
Alice E (New World Project - 0300670249)
Beartooth Primitive Area
Beavertrail Prospect
Big Blue Mine
Black Warrior (New World Project - 0300670249)
Bull Elk Lode (Arrowhead Lode)
Carlton (New World Project - 0300670249)
Chipmunk Mine (New World Project - 0300670249)
Commonwealth Prospect (New World Project - 0300670249)
Crown Butte And Melissa Mine (Melissa Claim; New World Project - 0300670249; Crown Butte Claim)
Days Of '49 Placer
DMH Group (New World Project - 0300670249)
Duke Mine (Street)
Early Day
Early Vacation Group
East Green Lake Prospect
Fire Clay Claim (See Early Day - 0300670035)
Fisher Mountain Prospect
Glengarry Mine (Glengary; Como)
Golden Grizzly Prospect (Como)
Goose Lake
Grace Lode Prospect
Great Rift Claim (Big Blue; St; Jude)
Green Lake Prospect
Greenback Occurrence (Simon's Map Location No. 99)
Happy Thought Placer
Hecta Prospect
Henderson Group (Henderson Claim; Last Chance Placer; Last Chance Extension; Last Chance Claim; New World Project - 0300670249; Charles Wisdom Claim)
Homestake (Silver Queen Mine; New World Project - 0300670249; Parkmont Mining Company - 0300670014)
Homestake Mine (Henderson Tunnel; Excello; Gold Dust; Parkmont)
Hudson Mine (New World Project - 0300670249; Hudson & Boulder; Skyline)
Josephine Mine (Josephine & Virginia Belle)
Longstreet Prospect (New World Project - 0300670070)
Lost Chance
Lulu Extension Lode Prospect
Lulu Mine (Lula Mine; Glengarry Group - 0300670010; Lulu-Contact; New World Project - 0300670249)
McLaren Mine (Estelle; New Year's Gift)
Miller Creek Prospect
Mohawk Warrior (Mohawk Mine)
Morning Star (New World Project - 0300670249; Parkmont Mining Company - 0300670014)
New World
New World Project (Daisy Mine; Little Daisy; Tredennick; Morning Star; Glengarry; Homestake Breccia Deposit; Homestake; Carlton; McLaren Gold Company; McLaren Deposit; Lula Mine)
North End Mountain Abundance Prospect
Oro Cache Prospect (Catch Of Ore)
Pig's Eye Placer
Polar Star Lode Prospect
Republic Mines (Irma; Greely; Blackrock; Houston; Republic; Houston; Snowslide)
Schiller Lode Prospect
Shoo Fly
Silver Zone Lode Prospect
Sky Top Creek Prospect
Stillwater River Prospect
Stump Lode Prospect
Tredennick (New World Project - 0300670249)
U. S. Treasury Prospect (New World Project - 0300670249)
Unidentified Deposit (Deposit No. 17 Wedow; MRDS - 10010538)
Unnamed Gold Prospect (MRDS - 10148582)
Unnamed Gold Prospect (MRDS - 10148771)
Unnamed Gold Prospect (MRDS - 10148921)
Unnamed Gold Prospect (MRDS - 10173370)
Unnamed Gold Prospect (MRDS - 10240309)
Unnamed Gold Prospect (MRDS - 10270138)
Unnamed Gold Prospect (MRDS - 10288886)
Viola Lode Occurrence

Latitude: 45°3'51"N
Longitude: 109°56'42"W
Decimal Degree (lat, lon): 45.064166666667,-109.945

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	Calcite	Chalcopyrite	Clinozoisite	Copper	Covellite	Epidote	Feldspar	Malachite	None
Polybasite	Pyrite	Quartz	Rocksalt	Sphalerite	Spinel

Acanthite ()*	Albite ()*	Ankerite ()*	Bornite ()*	Calcite ()*
Chalcocite ()*	Chalcopyrite ()*	Copper ()*	Covellite ()*	Epidote ()*
Galena ()*	Gold ()*	Magnetite ()*	Malachite ()*	Orthoclase ()*
Polybasite ()*	Proustite ()*	Pyrite ()*	Quartz ()*	Siderite ()*
Silver ()*	Sphalerite ()*

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 C Ca Cu Fe H K Na O Pb S Sb Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Calcite Chalcopyrite Clinozoisite Copper Covellite Epidote Feldspar Malachite None
Polybasite Pyrite Quartz Rocksalt Sphalerite Spinel

22 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Acanthite ()*	Acanthite	Ag₂S	1	232639	2793
Albite ()*	Feldspar	Na(AlSi₃O₈)	1	232613	8803
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	1	232639	3092
Bornite ()*	None	Cu₅FeS₄	3	232613,232614,232629	5516
Calcite ()*	Calcite	Ca(CO₃)	4	232596,232609,232639,232656	27770
Chalcocite ()*	None	Cu₂S	2	232609,232613	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	9	232596,232609,232613,232614,232622,232629,232633,232642,232656	27198
Copper ()*	Copper	Cu	2	232622,232629	3846
Covellite ()*	Covellite	CuS	1	232629	4165
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	2	232609,232629	8173
Galena ()*	Rocksalt	PbS	8	232596,232624,232633,232634,232638,232639,232645,232656	24243
Gold ()*	Copper	Au	2	232622,232634	30554
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2	232613,232629	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	4	232614,232638,232642,232656	12537
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	1	232613	2349
Polybasite ()*	Polybasite	[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇]	1	232639	716
Proustite ()*	None	Ag₃AsS₃	1	232639	733
Pyrite ()*	Pyrite	FeS₂	9	232596,232608,232609,232622,232629,232633,232634,232639,232656	39462
Quartz ()*	Quartz	SiO₂	7	232596,232608,232622,232629,232634,232639,232656	61156
Siderite ()*	Calcite	Fe(CO₃)	2	232622,232634	6417
Silver ()*	Copper	Ag	1	232639	5186
Sphalerite ()*	Sphalerite	ZnS	5	232596,232613,232633,232639,232656	21482

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	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
	USGS-Rb-Sr-00411	2665.53	2541.53	2603.53±62	Rb-Sr	age of intrusion		whole rock							162012	Hecta Prospect, New World Mining District (Cooke Mining District), Park Co., Montana, USA		USGS-Rb-Sr		USGS-Rb-Sr
	USGS-Rb-Sr-00412	2685.34	2569.34	2627.34±58	Rb-Sr	age of intrusion		whole rock							162012	Hecta Prospect, New World Mining District (Cooke Mining District), Park Co., Montana, USA		USGS-Rb-Sr		USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...