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:
El Dorado Co., California, USA

Oldest recorded age at locality: 388
Youngest recorded age at locality: 19.21

mindat Locality ID: 3454
mindat URL: http://www.mindat.org/loc-3454.html

Tectonic Settings:

Total number of sublocalities beneath "El Dorado Co., California, USA": 1418
Total number of bottom-level sublocalities: 1277

Number of Child Localities: 53
Child Localities:
Aukum
Big Kennebeck Bar
Caldor
Campana
Cañada De Las Uvas
Clarksville District
Claussenius
Cool
Crystal Range
Darlington Deposit
Davis Mine
Deer Creek District
Dry Gulch Mine
East Belt
Emerald Bay
Fairbanks
Fairplay District
Fallen Leaf
Foothill Copper Belt
Granite Bar Deposit
Holden's Garden
Hope Valley Mine
Indian Diggings District
Kyburz
Lake Valley
Latrobe District
Leonardi
Mayflower Mine
Meeks Bay
Meyers
Mother Lode Belt
Mount Tallac
Mount Thompson (Thompson Peak)
Newcastle
Newtown District
Pacific District
Pilliken District
Pilot Hill District
Quintette
Rattlesnake Bar District
Rescue Mine
Roger's Mine
Salmon Falls District (Flagstaff Hill Area)
Sawmill
Sciots Camp
Slate Mts
Slippery Ford
South Lake Tahoe
Volcanoville District
Webber Hill
Weber Creek
Wentworth Springs
West Belt

Latitude: 38°47'24"N
Longitude: 120°33'51"W
Decimal Degree (lat, lon): 38.79,-120.56416666667

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.

Alunite	Amorphous	Amphibole	Apatite	Arsenic	Arsenopyrite	Axinite	Brochantite	Brookite	Calcite
Chalcanthite	Chalcopyrite	Chlorite	Clay	Clinozoisite	Copper	Corrensite	Corundum	Covellite	Diamond
Enargite	Epidote	Feldspar	Garnet	Gypsum	Halotrichite	Iron	Malachite	Melonite	Mica
Molybdenite	Nickeline	None	Not in a structural group	Olivine	Pentlandite	Prehnite	Pyrite	Pyrophyllite	Pyroxene
Quartz	Rhodonite	Rocksalt	Rutile	Scheelite	Serpentine	Smectite-vermiculite	Sphalerite	Spinel	Stibnite
Talc	Tetrahedrite	Titanite	Tochilinite	Topaz	Turquoise	Vesuvianite	Wavellite	Wurtzite

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 Bi C Ca Cl Cr Cu F Fe H Hg Ir K Mg Mn Mo Na Ni O P Pb Pt S Sb Si Te Ti U V W Zn

Elements from minerals reported directly at this locality: Al F Fe H O S Si

Structural Groups for minerals in this locality:
Alunite Amorphous Amphibole Apatite Arsenic Arsenopyrite Axinite Brochantite Brookite Calcite
Chalcanthite Chalcopyrite Chlorite Clay Clinozoisite Copper Corrensite Corundum Covellite Diamond
Enargite Epidote Feldspar Garnet Gypsum Halotrichite Iron Malachite Melonite Mica
Molybdenite Nickeline None Not in a structural group Olivine Pentlandite Prehnite Pyrite Pyrophyllite Pyroxene
Quartz Rhodonite Rocksalt Rutile Scheelite Serpentine Smectite-vermiculite Sphalerite Spinel Stibnite
Talc Tetrahedrite Titanite Tochilinite Topaz Turquoise Vesuvianite Wavellite Wurtzite

101 IMA Minerals at location:

Actinolite ()*	Albite ()*	Anatase ()*	Ankerite ()*	Antigorite ()*
Antimony ()*	Arsenopyrite ()*	Axinite-(Mn) ()*	Azurite ()*	Bornite ()*
Brochantite ()*	Brookite ()*	Cacoxenite ()*	Calaverite ()*	Calcite ()*
Carnotite ()*	Chalcanthite ()*	Chalcocite ()*	Chalcopyrite ()*	Chromite ()*
Chrysotile ()*	Cinnabar ()*	Clinochlore ()*	Copper ()*	Corundum ()*
Covellite ()*	Crandallite ()*	Cronstedtite ()*	Diamond ()*	Diopside ()*
Dolomite ()*	Enargite ()*	Enstatite ()*	Epidote ()*	Ferrimolybdite ()*
Forsterite ()*	Galena ()*	Gold ()*	Graphite ()*	Grossular ()*
Gypsum ()*	Halotrichite ()*	Hedenbergite ()*	Hematite ()*	Hessite ()*
Hinsdalite ()*	Ilmenite ()*	Iridium ()*	Iron ()*	Magnesiochromite ()*
Magnesite ()*	Magnetite ()*	Malachite ()*	Maldonite ()*	Margarite ()*
Massicot ()*	Molybdenite ()*	Muscovite ()*	Népouite ()*	Nontronite ()*
Oldhamite ()*	Opal ()*	Orthoclase ()*	Paragonite ()*	Pentlandite ()*
Petzite ()*	Platinum ()*	Powellite ()*	Prehnite ()*	Pyrite ()*
Pyrolusite ()*	Pyromorphite ()*	Pyrophyllite ()*	Pyrrhotite ()*	Quartz ()*
Rectorite ()*	Rhodonite ()*	Riebeckite ()*	Roscoelite ()*	Rutile ()*
Scheelite ()*	Schreibersite ()*	Siderite ()*	Silver ()*	Sphalerite ()*
Spinel ()*	Stibnite ()*	Strengite ()*	Taenite ()*	Talc ()*
Tetrahedrite-(Zn) ()*	Titanite ()*	Tochilinite ()*	Topaz ()*	Troilite ()*
Turquoise ()*	Uvarovite ()*	Variscite ()*	Vesuvianite ()*	Wavellite ()*
Wulfenite ()*

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
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂			2	154228,155441	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)			4	154492,154666,155441,155484	8803
Anatase ()*	Not in a structural group	TiO₂			3	154119,154512,154991	2162
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂			5	154642,154805,154855,155372,155441	3092
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄			1	155191	708
Antimony ()*	Arsenic	Sb			1	155112	363
Arsenopyrite ()*	Arsenopyrite	FeAsS			7	154163,154600,154722,154805,154956,155418,155446	9052
Axinite-(Mn) ()*	Axinite	Ca₄Mn²⁺₂Al₄[B₂Si₈O₃₀](OH)₂			1	154276	88
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂			3	154276,155137,155156	5509
Bornite ()*	None	Cu₅FeS₄			11	154251,154276,154574,154591,155132,155137,155156,155418,155442,155488,155489	5516
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆			1	155137	1633
Brookite ()*	Brookite	TiO₂			2	154512,154991	700
Cacoxenite ()*	None	Fe³⁺₂₄AlO₆(PO₄)₁₇(OH)₁₂·75H₂O			1	155209	280
Calaverite ()*	Melonite	AuTe₂			1	154214	361
Calcite ()*	Calcite	Ca(CO₃)	388	388	21	154207,154212,154213,154251,154276,154301,154492,154605,154614,154666,154674,154700,154805,154809,155137,155156,155166,155309,155409,155441,155484	27770
Carnotite ()*	None	K₂(UO₂)₂(VO₄)₂·3H₂O			1	154991	1184
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O			1	155137	925
Chalcocite ()*	None	Cu₂S			2	154276,155442	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			31	154100,154123,154151,154163,154175,154190,154251,154276,154313,154415,154566,154574,154591,154622,154787,155132,155133,155137,155156,155166,155169,155328,155368,155372,155373,155398,155418,155441,155442,155446,155448	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	388	164	63	154103,154104,154110,154411,154417,154418,154421,154425,154426,154427,154429,154430,154437,154438,154456,154470,154478,154493,154538,154788,155053,155136,155159,155171,155175,155177,155180,155181,155182,155183,155184,155185,155187,155188,155189,155190,155226,155232,155239,155247,155258,155263,155292,155295,155297,155303,155304,155309,155313,155316,155322,155332,155360,155378,155382,155386,155390,155399,155404,155430,155445,155460,155472	3902
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄			2	154510,154800	951
Cinnabar ()*	None	HgS			1	155376	2600
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	388	164	16	154119,154418,154423,154430,154437,154478,154491,154541,154956,155175,155176,155179,155247,155263,155302,155382	1756
Copper ()*	Copper	Cu			4	154276,154513,154535,155328	3846
Corundum ()*	Corundum	Al₂O₃			1	155309	1797
Covellite ()*	Covellite	CuS			1	155137	4165
Crandallite ()*	Alunite	CaAl₃(PO₄)(PO₃OH)(OH)₆			1	155209	310
Cronstedtite ()*	Clay Serpentine	(Fe²⁺,Fe³⁺)₃(Si,Fe³⁺)₂O₅(OH)₄			1	155309	54
Diamond ()*	Diamond	C			5	154895,155025,155027,155267,155275	697
Diopside ()*	Pyroxene	CaMgSi₂O₆	164	164	5	154276,154541,154559,155180,155309	4135
Dolomite ()*	None	CaMg(CO₃)₂			1	155309	9895
Enargite ()*	Enargite Wurtzite	Cu₃AsS₄			1	154490	910
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	164	164	2	155180,155309	944
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	164	164	10	154182,154251,154276,154301,154305,155049,155137,155186,155441,155450	8173
Ferrimolybdite ()*	None	Fe³⁺₂(Mo⁶⁺O₄)₃·7H₂O			1	154276	345
Forsterite ()*	Olivine	Mg₂(SiO₄)			1	155309	1188
Galena ()*	Rocksalt	PbS			22	154154,154163,154166,154169,154175,154190,154350,154491,154584,154600,154659,154922,154966,155137,155164,155169,155368,155372,155373,155393,155418,155448	24243
Gold ()*	Copper	Au	388	19.21	623	154077,154079,154081,154082,154083,154084,154090,154091,154105,154107,154108,154111,154123,154130,154131,154134,154137,154142,154147,154150,154152,154153,154157,154158,154159,154161,154163,154164,154165,154166,154167,154169,154171,154173,154174,154175,154176,154178,154179,154180,154183,154184,154185,154186,154187,154190,154194,154201,154203,154204,154207,154209,154211,154212,154214,154220,154221,154222,154224,154238,154240,154242,154243,154244,154250,154253,154256,154257,154259,154262,154265,154266,154270,154276,154278,154284,154291,154293,154296,154306,154312,154316,154324,154330,154331,154333,154335,154336,154340,154349,154350,154353,154354,154355,154356,154357,154358,154360,154361,154362,154363,154364,154365,154366,154367,154372,154373,154375,154376,154377,154381,154383,154384,154387,154393,154394,154395,154396,154397,154398,154399,154400,154424,154428,154431,154432,154433,154434,154443,154445,154455,154458,154459,154460,154461,154463,154467,154468,154477,154479,154480,154484,154487,154488,154489,154492,154495,154496,154497,154498,154499,154507,154516,154517,154519,154520,154522,154523,154524,154525,154528,154529,154530,154532,154533,154537,154539,154544,154545,154546,154547,154549,154551,154552,154553,154554,154555,154557,154560,154562,154563,154565,154566,154567,154568,154569,154573,154574,154576,154577,154578,154579,154580,154581,154582,154583,154584,154586,154587,154588,154590,154593,154594,154595,154596,154597,154598,154600,154601,154602,154603,154604,154605,154607,154612,154613,154614,154615,154617,154618,154619,154620,154623,154624,154626,154627,154630,154631,154632,154635,154636,154637,154638,154641,154642,154643,154645,154646,154647,154649,154650,154653,154654,154655,154656,154657,154658,154659,154660,154661,154662,154663,154664,154665,154666,154667,154668,154670,154671,154672,154674,154675,154676,154677,154680,154681,154682,154683,154684,154686,154688,154689,154691,154692,154694,154695,154696,154697,154698,154700,154701,154702,154703,154704,154705,154712,154713,154714,154718,154719,154720,154721,154722,154724,154725,154726,154727,154730,154731,154732,154733,154735,154736,154739,154740,154742,154743,154744,154746,154748,154749,154750,154753,154754,154757,154758,154760,154761,154764,154765,154767,154768,154769,154770,154771,154772,154773,154774,154775,154776,154777,154782,154783,154784,154791,154792,154793,154794,154795,154797,154798,154799,154800,154802,154803,154804,154805,154809,154810,154811,154812,154813,154814,154815,154818,154823,154827,154828,154829,154830,154833,154834,154835,154836,154839,154840,154841,154842,154843,154844,154847,154848,154849,154850,154851,154852,154853,154855,154856,154857,154860,154861,154863,154865,154866,154874,154877,154879,154888,154889,154890,154891,154892,154896,154898,154901,154902,154903,154904,154907,154910,154912,154915,154917,154921,154922,154924,154926,154927,154928,154930,154931,154932,154933,154934,154937,154939,154942,154943,154944,154945,154946,154948,154949,154950,154951,154953,154955,154956,154957,154959,154961,154962,154963,154965,154966,154969,154970,154974,154975,154980,154981,154985,154986,154987,154988,154990,154992,154994,154995,154996,154997,154998,155002,155009,155012,155015,155018,155024,155028,155029,155033,155036,155040,155041,155042,155043,155045,155056,155057,155060,155062,155063,155064,155066,155067,155069,155073,155078,155079,155080,155081,155082,155090,155092,155097,155116,155121,155128,155130,155131,155138,155139,155143,155149,155157,155158,155161,155163,155164,155200,155204,155205,155206,155208,155217,155219,155220,155221,155222,155224,155225,155227,155229,155231,155233,155234,155237,155240,155241,155244,155246,155248,155249,155251,155252,155254,155255,155259,155261,155263,155266,155270,155271,155274,155279,155286,155293,155294,155296,155299,155301,155305,155306,155308,155310,155311,155312,155315,155319,155324,155328,155329,155330,155334,155335,155336,155342,155343,155347,155348,155349,155351,155352,155355,155356,155357,155358,155362,155363,155364,155365,155367,155368,155370,155371,155372,155373,155380,155391,155392,155393,155395,155401,155402,155405,155408,155409,155412,155413,155415,155418,155422,155425,155427,155429,155433,155437,155438,155441,155443,155446,155447,155448,155449,155450,155452,155453,155454,155455,155456,155457,155458,155459,155463,155467,155470,155473,155476,155477,155478,155480,155484	30554
Graphite ()*	None	C	388	388	4	154207,154504,154614,154942	2812
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃			2	154276,154541	1544
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			1	155051	6890
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O	388	19.21	0		409
Hedenbergite ()*	Pyroxene	CaFe²⁺Si₂O₆			1	155309	741
Hematite ()*	Corundum	Fe₂O₃			6	154119,154423,155137,155418,155441,155450	14640
Hessite ()*	None	Ag₂Te			2	154491,155476	804
Hinsdalite ()*	Alunite	PbAl₃(SO₄)(PO₄)(OH)₆			1	155210	82
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			1	154491	5433
Iridium ()*	Copper	Ir			1	154139	162
Iron ()*	Iron	Fe			1	155485	1089
Magnesiochromite ()*	Spinel	MgCr₂O₄	388	164	13	154113,154114,154116,154311,154435,155170,155172,155173,155179,155186,155191,155195,155302	311
Magnesite ()*	Calcite	Mg(CO₃)	164	164	6	155173,155179,155180,155183,155184,155191	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			10	154251,154423,155137,155173,155191,155268,155309,155359,155418,155450	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			6	154276,155133,155137,155156,155328,155418	12537
Maldonite ()*	None	Au₂Bi			1	154903	88
Margarite ()*	Mica Clay	CaAl₂Si₂Al₂O₁₀(OH)₂			2	154491,154504	168
Massicot ()*	None	PbO			1	155165	202
Molybdenite ()*	Molybdenite	MoS₂			4	154182,154276,154956,155418	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			10	154207,154413,154450,154485,154504,154584,154585,154889,154956,155372	17380
Népouite ()*	Serpentine Clay	Ni₃Si₂O₅(OH)₄	164	164	1	155179	66
Nontronite ()*	Clay Smectite-vermiculite	Na_0.3Fe³⁺₂(Si,Al)₄O₁₀(OH)₂·nH₂O			1	154491	471
Oldhamite ()*	Rocksalt	CaS			1	155309	58
Opal ()*	Amorphous	SiO₂·nH₂O	164	164	2	155184,155191	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)			2	154276,154298	2349
Paragonite ()*	Mica Clay	NaAl₂(Si₃Al)O₁₀(OH)₂			1	154504	247
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈			1	155309	1512
Petzite ()*	None	Ag₃AuTe₂			1	154214	409
Platinum ()*	Copper	Pt			1	154139	485
Powellite ()*	Scheelite	Ca(MoO₄)			2	154251,154276	494
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂			1	154541	1898
Pyrite ()*	Pyrite	FeS₂	388	388	54	154119,154151,154163,154166,154169,154175,154190,154207,154301,154350,154415,154477,154492,154498,154566,154574,154584,154591,154593,154600,154605,154614,154622,154659,154700,154731,154760,154773,154805,154809,154922,154930,154956,154969,155051,155132,155133,155137,155164,155166,155169,155368,155373,155376,155392,155393,155409,155418,155441,155446,155448,155450,155457,155484	39462
Pyrolusite ()*	Rutile	MnO₂			4	154485,154584,154585,154780	3106
Pyromorphite ()*	Apatite	Pb₅(PO₄)₃Cl			1	154197	1725
Pyrophyllite ()*	Clay Pyrophyllite	Al₂Si₄O₁₀(OH)₂			1	154276	771
Pyrrhotite ()*	Nickeline	Fe₇S₈			5	154154,154415,154566,155309,155441	9056
Quartz ()*	Quartz	SiO₂	388	388	439	154077,154081,154107,154108,154118,154119,154123,154134,154137,154142,154157,154158,154159,154161,154163,154164,154165,154166,154167,154169,154171,154173,154174,154175,154176,154178,154179,154180,154182,154183,154184,154185,154186,154187,154190,154194,154197,154203,154204,154207,154209,154211,154212,154214,154220,154221,154222,154224,154251,154256,154257,154266,154270,154276,154284,154301,154305,154330,154331,154333,154336,154350,154354,154356,154357,154360,154363,154364,154366,154376,154377,154381,154383,154393,154394,154395,154397,154398,154399,154400,154413,154428,154431,154452,154455,154458,154459,154460,154461,154463,154468,154477,154480,154488,154489,154491,154492,154497,154499,154507,154516,154517,154519,154522,154523,154524,154525,154529,154530,154533,154537,154539,154544,154545,154546,154547,154549,154551,154552,154553,154554,154555,154557,154563,154565,154566,154567,154568,154569,154570,154573,154576,154577,154578,154579,154580,154581,154582,154583,154584,154586,154587,154588,154590,154593,154594,154595,154596,154597,154598,154600,154601,154603,154604,154605,154607,154612,154613,154614,154615,154617,154618,154619,154620,154623,154624,154627,154630,154631,154632,154635,154636,154638,154642,154643,154645,154646,154647,154649,154650,154653,154655,154656,154657,154658,154659,154660,154661,154662,154663,154664,154665,154667,154668,154670,154671,154672,154674,154675,154676,154677,154680,154681,154682,154683,154684,154686,154688,154689,154691,154692,154694,154695,154696,154697,154698,154700,154701,154702,154703,154705,154712,154713,154714,154718,154719,154720,154721,154722,154724,154725,154726,154727,154730,154731,154732,154733,154735,154736,154739,154740,154742,154743,154744,154746,154749,154750,154753,154754,154757,154758,154760,154761,154764,154765,154767,154768,154769,154770,154771,154772,154773,154774,154775,154777,154782,154783,154784,154791,154792,154794,154795,154797,154799,154800,154802,154803,154805,154809,154812,154813,154814,154815,154818,154823,154827,154828,154830,154833,154835,154836,154839,154840,154842,154843,154844,154848,154849,154850,154851,154852,154853,154856,154857,154860,154861,154865,154866,154877,154889,154890,154891,154898,154904,154910,154912,154915,154917,154921,154922,154924,154926,154927,154930,154931,154932,154933,154934,154937,154942,154943,154945,154946,154948,154949,154950,154953,154959,154961,154962,154965,154966,154969,154979,154991,155002,155015,155033,155040,155041,155042,155043,155069,155130,155132,155137,155138,155139,155147,155149,155158,155161,155163,155164,155204,155205,155206,155208,155209,155210,155233,155237,155244,155248,155249,155251,155254,155259,155263,155266,155270,155271,155279,155286,155293,155296,155299,155305,155306,155312,155329,155330,155335,155336,155343,155349,155351,155352,155357,155364,155367,155368,155370,155371,155373,155380,155388,155391,155392,155393,155395,155402,155408,155409,155412,155413,155415,155418,155425,155427,155429,155433,155434,155438,155441,155443,155446,155447,155448,155450,155457,155458,155459,155463,155467,155477,155480,155484,155486	61156
Rectorite ()*	Corrensite Clay	(Na,Ca)Al₄(Si,Al)₈O₂₀(OH)₄·2H₂O			1	155176	49
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)			2	154584,154585	969
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂			1	155450	375
Roscoelite ()*	Mica	KV³⁺₂(Si₃Al)O₁₀(OH)₂			4	155052,155306,155308,155323	253
Rutile ()*	Rutile	TiO₂			3	154119,155209,155441	5614
Scheelite ()*	Scheelite	Ca(WO₄)			4	154182,154213,154301,155148	4894
Schreibersite ()*	None	(Fe,Ni)₃P			1	155309	374
Siderite ()*	Calcite	Fe(CO₃)			1	154666	6417
Silver ()*	Copper	Ag			3	154251,154574,154956	5186
Sphalerite ()*	Sphalerite	ZnS			11	154163,154166,154169,154175,154190,154600,155169,155309,155418,155428,155448	21482
Spinel ()*	Spinel	MgAl₂O₄			1	155309	1934
Stibnite ()*	Stibnite	Sb₂S₃			3	154163,154276,155418	3418
Strengite ()*	None	Fe³⁺(PO₄)·2H₂O			1	155209	263
Taenite ()*	None	(Ni,Fe)			1	155485	703
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	388	164	27	154146,154212,154422,154572,154642,154674,154760,154889,154956,155173,155180,155183,155184,155185,155188,155189,155190,155277,155295,155297,155302,155328,155379,155383,155393,155484,155486	3337
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃			1	155137	5317
Titanite ()*	Titanite	CaTi(SiO₄)O			2	155211,155441	4899
Tochilinite ()*	Tochilinite	6(Fe_0.9S)·5[(Mg,Fe)(OH)₂]			1	155309	56
Topaz ()*	Topaz	Al₂SiO₄F₂	388	19.21	0		1476
Troilite ()*	None	FeS			1	155309	1044
Turquoise ()*	Turquoise	CuAl₆(PO₄)₄(OH)₈·4H₂O			1	155203	484
Uvarovite ()*	Garnet	Ca₃Cr₂(SiO₄)₃	311	164	7	154423,154437,154478,155175,155179,155186,155247	212
Variscite ()*	None	Al(PO₄)·2H₂O			1	155209	301
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀			3	154506,154541,155137	1395
Wavellite ()*	Wavellite	Al₃(PO₄)₂(OH)₃·5H₂O			1	155209	374
Wulfenite ()*	Scheelite	PbMoO₄			1	154488	1655

29 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Sample Num	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID
NAVDAT-54539	23.9	22.7	23.3±0.6	54539		265875	Aukum, El Dorado Co., California, USA		NAVDAT	NAVDAT
podchrome-00104	311	311	Pennsylvanian (311±3 m.y. 206Pb/238U)		Cr	77787	Joerger Mine (Joerger Property; Joerger Deposit), El Dorado Hills, Clarksville District, El Dorado Co., California, USA	Joerger	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00102	311	311	Pennsylvanian (311±3 m.y. 206Pb/238U)		Cr	77966	Murphy Mine, Latrobe, Latrobe District, El Dorado Co., California, USA	Murphy	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00103	311	311	Pennsylvanian (311±3 m.y. 206Pb/238U)		Cr	78207	Smith Mine, Latrobe, Latrobe District, El Dorado Co., California, USA	Smith	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00128	388	388	pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists)		Cr	77679	Green Claim, Meadow Brook, Georgetown District, East Segment Mother Lode, Mother Lode Belt, El Dorado Co., California, USA	Green Claim	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00127	388	388	pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists)		Cr	77330	Black Oak Mine [1], Garden Valley, Kelsey District, Mother Lode Belt, El Dorado Co., California, USA	Black Oak	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00124	388	388	pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists)		Cr	78357	Veer Kamp Mine (Veerkamp; Gold Coin), Garden Valley, Kelsey District, Mother Lode Belt, El Dorado Co., California, USA	Veerkemp	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00126	311	311	Pennsylvanian (304-311 Ma U-Pb zircon from plagiogranite)		Cr	77415	Central Pacific Railroad Mine (Central Pacific R. R.; Central Pac. R.R.), Penobscot Farm, Greenwood District, Northwest Segment Mother Lode, Mother Lode Belt, El Dorado Co., California, USA	Central Pacific Railroad Land	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00106	164	164	Middle Jurassic (163±2 to 165±2 m.y. 206Pb/238U)		Cr	77385	Burnett Property (Burnett Ranch), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Burnett Property	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00116	164	164	Middle Jurassic (163±2 to 165±2 m.y. 206Pb/238U)		Cr	77493	Darrington Mine (Darington Deposit; Darington Gurney; Gurney Property; McGuire; Holbrook), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Darrington East Zone	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00107	164	164	Middle Jurassic (163±2 to 165±2 m.y. 206Pb/238U)		Cr	78059	Pillikin Mine Area 1 (East Basin), Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Pillikin East Basin	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00108	164	164	Middle Jurassic (163±2 to 165±2 m.y. 206Pb/238U)		Cr	78062	Pillikin Mine Area 2 (Bonanza King Mine), Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Bonanza King	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00109	164	164	Middle Jurassic (163±2 to 165±2 m.y. 206Pb/238U)		Cr	78063	Pillikin Mine Area 3 (West Basin), Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Pillikin West Basin	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00110	164	164	Middle Jurassic (163±2 to 165±2 m.y. 206Pb/238U)		Cr	78057	Pillikin Mine Area 4 (Chrome Gulch), Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Chrome Gulch	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00115	164	164	Middle Jurassic (163±2 to 165±2 m.y. 206Pb/238U)		Cr	78064	Pillikin Mine Area 5 (Placer Chrome Company Workings; Placer Chrome Company Mine; Placer Chrome Mine), Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Shirt Tail Peak	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00113	164	164	Middle Jurassic (163±2 to 165±2 m.y. 206Pb/238U)		Cr	78067	Pillikin Mine Area 8, Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Pillikin Area 8	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00114	164	164	Middle Jurassic (163±2 to 165±2 m.y. 206Pb/238U)		Cr	78068	Pillikin Mine Area 9, Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	Pillikin Area 9	Moiser et al. (2012)	USGSSIR2012_5157
NAVDAT-54535	31.1	26.34	28.72±2.38	54535		77906	Mayhea Ranch Placer Mine, Sciots Camp, El Dorado Co., California, USA		NAVDAT	NAVDAT
NAVDAT-54536	31.1	26.34	28.72±2.38	54536		77906	Mayhea Ranch Placer Mine, Sciots Camp, El Dorado Co., California, USA		NAVDAT	NAVDAT
NAVDAT-54537	26.34	19.21	22.78+3.56/-3.57	54537		77906	Mayhea Ranch Placer Mine, Sciots Camp, El Dorado Co., California, USA		NAVDAT	NAVDAT
NAVDAT-54538	26.34	19.21	22.78+3.56/-3.57	54538		77906	Mayhea Ranch Placer Mine, Sciots Camp, El Dorado Co., California, USA		NAVDAT	NAVDAT
podchrome-00129	388	388	pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists)		Cr	78002	Ogle Mine, Volcanoville, Volcanoville District, El Dorado Co., California, USA	Ogle	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00119	388	388	pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists)		Cr	77910	McCurdy Mine [2], Coloma, Coloma District, West Belt, El Dorado Co., California, USA	McCurdy	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00120	388	388	pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists)		Cr	77999	O'Brien Mine (S-Bend Mine), Coloma, Coloma District, West Belt, El Dorado Co., California, USA	O'Brien	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00123	388	388	pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists)		Cr	78187	Shelley Mine (Wolf Mine; Shelly Mine; Shelley Wolf Mine), Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Shelly	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00125	388	388	pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists)		Cr	78190	Sheppard Mine, Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Sheppard	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00121	388	388	pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists)		Cr	78196	Simon Mine, Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Simon North	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00122	388	388	pre-Early Devonian-Jurassic (388±17 Ma U-Pb zircon from felsic igneous rocks; 174 Ma K-Ar white mica from blueschists)		Cr	78196	Simon Mine, Coloma, Coloma District, West Belt, El Dorado Co., California, USA	Simon South	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00118	311	311	Pennsylvanian (311±3 m.y. 206Pb/238U)		Cr	78403	Williamson Mine (Hector Williamson), Cold Springs, Shingle Springs District, West Belt, El Dorado Co., California, USA	Williamson	Moiser et al. (2012)	USGSSIR2012_5157

Sample	Source Locality	Reference URL
R110060	Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine), Flagstaff Hill, Salmon Falls District (Flagstaff Hill Area), El Dorado Co., California, USA	https://rruff.info/R110060

All locality data graciously provided by mindat.org

All age data...