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:
Imperial Co., California, USA

Oldest recorded age at locality: 106
Youngest recorded age at locality: 0

mindat Locality ID: 23730
mindat URL: http://www.mindat.org/loc-23730.html

Tectonic Settings:

Total number of sublocalities beneath "Imperial Co., California, USA": 421
Total number of bottom-level sublocalities: 345

Number of Child Localities: 35
Child Localities:
4-S Ranch Area
Bertram
Black Hills
Blue Mountain
Brawley
Cactus
Cargo Muchacho Mts
Carrizo Creek
Chocolate Mts
Coyote Mts
Coyote Wells
Desert Shores
Dixieland
El Centro
Fish Creek Mts
Frink
Heber
Imperial Valley
Jacumba Mts
Little Mule Mts
Mount Signal (Mt. Signal)
Mule Mts (Palo Verde Mts)
Mundo (Volcano Station)
Niland
Ocotillo
Ogilby
Orita
Palo Verde Mts
Plaster City
Salton City
Salton Sea
Seeley
Westmorland
Winterhaven
Wister

Latitude: 33°1'14"N
Longitude: 115°32'4"W
Decimal Degree (lat, lon): 33.020555555556,-115.53444444444

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	Alum	Alunite	Amorphous	Amphibole	Analcime	Andalusite	Apatite	Aragonite
Arcanite	Arsenopyrite	Autunite	Baryte	Blödite	Calcite	Chalcanthite	Chalcopyrite	Clay	Clinozoisite
Copper	Corundum	Covellite	Cristobalite	Descloizite	Diaspore	Dumortierite	Epidote	Epsomite	Feldspar
Fluorite	Garnet	Gypsum	Halotrichite	Hexahydrite	Kaolinite	Lazulite	Malachite	Mica	Nickeline
None	Northupite	Not in a structural group	Olivine	Phenakite	Picromerite	Prehnite	Pyrite	Pyrophyllite	Pyroxene
Quartz	Ramsdellite	Rinneite	Rocksalt	Rutile	Scheelite	Serpentine	Smectite-vermiculite	Sphalerite	Spinel
Starkeyite	Staurolite	Sulphur	Tamarugite	Tetrahedrite	Titanite	Tourmaline	Tridymite	Turquoise	Voltaite
Wollastonite

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 C Ca Cl Cu F Fe H Hg K Mg Mn N Na Ni O P Pb S Sb Si Sr Ti U V W Zn

Elements from minerals reported directly at this locality: As Fe H O

Structural Groups for minerals in this locality:
Acanthite Allophane Alum Alunite Amorphous Amphibole Analcime Andalusite Apatite Aragonite
Arcanite Arsenopyrite Autunite Baryte Blödite Calcite Chalcanthite Chalcopyrite Clay Clinozoisite
Copper Corundum Covellite Cristobalite Descloizite Diaspore Dumortierite Epidote Epsomite Feldspar
Fluorite Garnet Gypsum Halotrichite Hexahydrite Kaolinite Lazulite Malachite Mica Nickeline
None Northupite Not in a structural group Olivine Phenakite Picromerite Prehnite Pyrite Pyrophyllite Pyroxene
Quartz Ramsdellite Rinneite Rocksalt Rutile Scheelite Serpentine Smectite-vermiculite Sphalerite Spinel
Starkeyite Staurolite Sulphur Tamarugite Tetrahedrite Titanite Tourmaline Tridymite Turquoise Voltaite
Wollastonite

126 IMA Minerals at location:

Acanthite ()*	Actinolite ()*	Albite ()*	Almandine ()*	Andalusite ()*
Anhydrite ()*	Ankerite ()*	Antigorite ()*	Aragonite ()*	Arsenopyrite ()*
Autunite ()*	Azurite ()*	Baryte ()*	Blödite ()*	Bornite ()*
Boussingaultite ()*	Calcite ()*	Carnotite ()*	Celestine ()*	Cerussite ()*
Chalcocite ()*	Chalcopyrite ()*	Chlorargyrite ()*	Chrysocolla ()*	Chrysotile ()*
Cinnabar ()*	Claudetite ()*	Copper ()*	Covellite ()*	Cristobalite ()*
Cuprite ()*	Descloizite ()*	Diopside ()*	Dolomite ()*	Dumortierite ()*
Enstatite ()*	Epidote ()*	Epsomite ()*	Fayalite ()*	Fluorapatite ()*
Fluorite ()*	Forsterite ()*	Galena ()*	Glauberite ()*	Goethite ()*
Gold ()*	Graphite ()*	Grossular ()*	Gypsum ()*	Halite ()*
Halotrichite ()*	Hematite ()*	Hexahydrite ()*	Hydromagnesite ()*	Jarosite ()*
Kaolinite ()*	Koktaite ()*	Konyaite ()*	Kyanite ()*	Lazulite ()*
Lecontite ()*	Magnesite ()*	Magnetite ()*	Malachite ()*	Manganite ()*
Mascagnite ()*	Metatorbernite ()*	Microcline ()*	Mirabilite ()*	Montmorillonite ()*
Morenosite ()*	Mottramite ()*	Muscovite ()*	Natrojarosite ()*	Népouite ()*
Nesquehonite ()*	Niter ()*	Nitratine ()*	Northupite ()*	Opal ()*
Orthoclase ()*	Pentahydrite ()*	Pickeringite ()*	Polyhalite ()*	Prehnite ()*
Pyrite ()*	Pyrolusite ()*	Pyrophyllite ()*	Pyrrhotite ()*	Quartz ()*
Ramsdellite ()*	Realgar ()*	Romanèchite ()*	Rutile ()*	Salammoniac ()*
Saltonseaite ()*	Scheelite ()*	Schorl ()*	Scorodite ()*	Scorzalite ()*
Siderite ()*	Silver ()*	Sphalerite ()*	Starkeyite ()*	Staurolite ()*
Stromeyerite ()*	Strontianite ()*	Sulphur ()*	Svanbergite ()*	Sylvite ()*
Tamarugite ()*	Tenorite ()*	Tetrahedrite-(Zn) ()*	Thénardite ()*	Titanite ()*
Torbernite ()*	Tremolite ()*	Tridymite ()*	Tschermigite ()*	Turquoise ()*
Uranophane-α ()*	Vanthoffite ()*	Voltaite ()*	Wairakite ()*	Willemite ()*
Wollastonite ()*

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			3	156612,156619,156630	2793
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂			1	156823	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)			2	156536,156870	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃			1	156536	2353
Andalusite ()*	Andalusite	Al₂SiO₅			3	156511,156535,156536	1310
Anhydrite ()*	Not in a structural group	Ca(SO₄)			4	156741,156751,156801,156883	1588
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂			3	156588,156591,156883	3092
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄			2	156711,156868	708
Aragonite ()*	Aragonite	Ca(CO₃)			1	156893	3250
Arsenopyrite ()*	Arsenopyrite	FeAsS			2	156491,156882	9052
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O			1	156572	1272
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	27.4	23.9	6	156495,156507,156641,156648,156672,156742	5509
Baryte ()*	Baryte	Ba(SO₄)			10	156535,156536,156612,156731,156761,156846,156852,156860,156864,156893	11547
Blödite ()*	Blödite	Na₂Mg(SO₄)₂·4H₂O	0.803	0.6	5	156478,156801,156877,156878,156879	130
Bornite ()*	None	Cu₅FeS₄			1	156495	5516
Boussingaultite ()*	Picromerite	(NH₄)₂Mg(SO₄)₂·6H₂O			2	156877,156878	30
Calcite ()*	Calcite	Ca(CO₃)	106	23.9	21	156482,156493,156571,156572,156587,156588,156591,156609,156612,156621,156693,156709,156730,156787,156793,156796,156801,156811,156846,156855,156883	27770
Carnotite ()*	None	K₂(UO₂)₂(VO₄)₂·3H₂O			5	156490,156535,156536,156568,156572	1184
Celestine ()*	Baryte	Sr(SO₄)			2	156755,156763	1252
Cerussite ()*	Aragonite	Pb(CO₃)	35	22.9	2	156612,156655	4979
Chalcocite ()*	None	Cu₂S			2	156495,156882	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	27.4	23.9	8	156495,156504,156612,156648,156672,156681,156882,156883	27198
Chlorargyrite ()*	Rocksalt	AgCl			1	156612	1382
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O			3	156495,156555,156621	3531
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄			1	156868	951
Cinnabar ()*	None	HgS			1	156801	2600
Claudetite ()*	None	As₂O₃			1	156475	35
Copper ()*	Copper	Cu			1	156495	3846
Covellite ()*	Covellite	CuS			1	156495	4165
Cristobalite ()*	Cristobalite	SiO₂			1	156875	453
Cuprite ()*	Not in a structural group	Cu₂O			2	156495,156507	2970
Descloizite ()*	Descloizite	PbZn(VO₄)(OH)			1	156493	378
Diopside ()*	Pyroxene	CaMgSi₂O₆	106	102	5	156776,156781,156787,156788,156820	4135
Dolomite ()*	None	CaMg(CO₃)₂			3	156588,156591,156893	9895
Dumortierite ()*	Dumortierite	AlAl₆BSi₃O₁₈	27.4	23.9	3	156577,156698,156831	231
Enstatite ()*	Pyroxene	Mg₂Si₂O₆			1	156711	944
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	106	102	6	156771,156780,156781,156883,156884,156891	8173
Epsomite ()*	Epsomite	Mg(SO₄)·7H₂O			5	156547,156711,156801,156868,156877	484
Fayalite ()*	Olivine	Fe²⁺₂(SiO₄)			1	156803	371
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			1	156535	2740
Fluorite ()*	Fluorite	CaF₂			2	156568,156852	9617
Forsterite ()*	Olivine	Mg₂(SiO₄)	35	21	1	156649	1188
Galena ()*	Rocksalt	PbS	35	22.9	6	156493,156605,156612,156655,156681,156883	24243
Glauberite ()*	None	Na₂Ca(SO₄)₂	0.803	0.6	2	156478,156874	137
Goethite ()*	Diaspore	FeO(OH)	27.4	23.9	3	156493,156571,156693	7437
Gold ()*	Copper	Au	106	21	37	156493,156495,156498,156499,156502,156504,156507,156512,156529,156531,156536,156538,156553,156566,156571,156575,156577,156586,156587,156588,156591,156603,156605,156630,156652,156654,156657,156663,156666,156667,156675,156688,156693,156703,156777,156778,156814	30554
Graphite ()*	None	C	106	102	6	156717,156724,156727,156728,156780,156829	2812
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃			2	156738,156793	1544
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			28	156475,156482,156536,156548,156568,156572,156713,156722,156741,156743,156745,156749,156751,156752,156753,156754,156755,156756,156757,156758,156759,156760,156801,156853,156858,156871,156877,156878	6890
Halite ()*	Rocksalt	NaCl			8	156582,156741,156767,156874,156877,156878,156881,156893	1398
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O			1	156801	409
Hematite ()*	Corundum	Fe₂O₃	27.4	23.9	14	156482,156511,156536,156616,156622,156623,156657,156693,156707,156814,156818,156846,156852,156883	14640
Hexahydrite ()*	Hexahydrite	Mg(SO₄)·6H₂O			1	156801	251
Hydromagnesite ()*	None	Mg₅(CO₃)₄(OH)₂·4H₂O			1	156893	341
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆			3	156493,156495,156536	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			2	156475,156706	5591
Koktaite ()*	None	(NH₄)₂Ca(SO₄)₂·H₂O			2	156877,156878	12
Konyaite ()*	Picromerite	Na₂Mg(SO₄)₂·5H₂O			1	156879	20
Kyanite ()*	Not in a structural group	Al₂OSiO₄			6	156511,156535,156536,156537,156568,156577	1507
Lazulite ()*	Lazulite	MgAl₂(PO₄)₂(OH)₂			1	156535	232
Lecontite ()*	None	(NH₄)Na(SO₄)·2H₂O			2	156877,156878	6
Magnesite ()*	Calcite	Mg(CO₃)			1	156893	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	27.4	23.9	5	156536,156585,156623,156693,156891	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	27.4	23.9	7	156495,156507,156555,156641,156648,156672,156742	12537
Manganite ()*	Rutile	Mn³⁺O(OH)			1	156628	770
Mascagnite ()*	Arcanite	(NH₄)₂(SO₄)			2	156877,156878	61
Metatorbernite ()*	None	Cu(UO₂)₂(PO₄)₂·8H₂O			1	156578	443
Microcline ()*	Feldspar	K(AlSi₃O₈)	27.4	23.9	1	156693	4924
Mirabilite ()*	None	Na₂(SO₄)·10H₂O	0.803	0.6	2	156478,156878	223
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	106	102	2	156792,156818	1508
Morenosite ()*	Epsomite	Ni(SO₄)·7H₂O			2	156711,156868	84
Mottramite ()*	Descloizite	PbCu(VO₄)(OH)			1	156493	362
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	27.4	23.9	10	156511,156536,156537,156657,156672,156693,156709,156720,156821,156848	17380
Natrojarosite ()*	Alunite	NaFe³⁺₃(SO₄)₂(OH)₆			1	156801	254
Népouite ()*	Serpentine Clay	Ni₃Si₂O₅(OH)₄			2	156711,156868	66
Nesquehonite ()*	None	Mg(CO₃)·3H₂O			1	156893	80
Niter ()*	None	K(NO₃)			1	156799	181
Nitratine ()*	Calcite	Na(NO₃)			2	156801,156879	91
Northupite ()*	Northupite	Na₃Mg(CO₃)₂Cl			1	156893	31
Opal ()*	Amorphous	SiO₂·nH₂O			1	156606	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	27.4	23.9	1	156672	2349
Pentahydrite ()*	Chalcanthite	Mg(SO₄)·5H₂O			1	156801	32
Pickeringite ()*	Halotrichite	MgAl₂(SO₄)₄·22H₂O			1	156801	265
Polyhalite ()*	None	K₂Ca₂Mg(SO₄)₄·2H₂O			1	156893	102
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂			1	156771	1898
Pyrite ()*	Pyrite	FeS₂	27.4	23.9	11	156495,156504,156518,156586,156587,156588,156591,156612,156693,156882,156883	39462
Pyrolusite ()*	Rutile	MnO₂			6	156626,156628,156636,156846,156852,156855	3106
Pyrophyllite ()*	Clay Pyrophyllite	Al₂Si₄O₁₀(OH)₂			4	156535,156536,156568,156830	771
Pyrrhotite ()*	Nickeline	Fe₇S₈			1	156883	9056
Quartz ()*	Quartz	SiO₂	106	23.9	50	156480,156485,156490,156493,156511,156518,156520,156522,156524,156536,156544,156545,156555,156571,156572,156586,156587,156588,156591,156593,156606,156609,156612,156621,156657,156693,156694,156705,156709,156714,156720,156750,156776,156778,156780,156786,156787,156788,156814,156815,156818,156821,156823,156838,156842,156850,156858,156859,156871,156893	61156
Ramsdellite ()*	Ramsdellite	MnO₂			1	156628	88
Realgar ()*	None	AsS			1	156475	712
Romanèchite ()*	None	(Ba,H₂O)₂(Mn⁴⁺,Mn³⁺)₅O₁₀			1	156838	312
Rutile ()*	Rutile	TiO₂			2	156535,156536	5614
Salammoniac ()*	None	(NH₄)Cl			3	156801,156877,156878	105
Saltonseaite ()*	Rinneite	K₃NaMnCl₆			1	156874	2
Scheelite ()*	Scheelite	Ca(WO₄)	106	102	6	156485,156495,156497,156782,156815,156820	4894
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)			3	156511,156535,156709	2705
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O	106	0	0		1153
Scorzalite ()*	Lazulite	Fe²⁺Al₂(PO₄)₂(OH)₂			2	156535,156536	60
Siderite ()*	Calcite	Fe(CO₃)			1	156707	6417
Silver ()*	Copper	Ag	27.4	23.9	4	156495,156496,156630,156693	5186
Sphalerite ()*	Sphalerite	ZnS	106	102	4	156495,156612,156784,156883	21482
Starkeyite ()*	Starkeyite	Mg(SO₄)·4H₂O			1	156801	79
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)			1	156535	978
Stromeyerite ()*	None	CuAgS			1	156882	332
Strontianite ()*	Aragonite	Sr(CO₃)			1	156893	589
Sulphur ()*	Sulphur	S			7	156475,156582,156708,156713,156801,156877,156878	2045
Svanbergite ()*	Alunite	SrAl₃(SO₄)(PO₄)(OH)₆			2	156535,156536	105
Sylvite ()*	Rocksalt	KCl			2	156874,156878	275
Tamarugite ()*	Tamarugite	NaAl(SO₄)₂·6H₂O			2	156801,156878	87
Tenorite ()*	None	CuO	27.4	23.9	2	156507,156672	1101
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	27.4	23.9	2	156650,156882	5317
Thénardite ()*	None	Na₂(SO₄)	0.803	0.6	5	156478,156801,156877,156878,156893	299
Titanite ()*	Titanite	CaTi(SiO₄)O			4	156771,156814,156874,156883	4899
Torbernite ()*	None	Cu(UO₂)₂(PO₄)₂·12H₂O			2	156568,156572	1059
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂			1	156820	2562
Tridymite ()*	Tridymite	SiO₂			1	156875	458
Tschermigite ()*	Alum	(NH₄)Al(SO₄)₂·12H₂O			2	156877,156878	81
Turquoise ()*	Turquoise	CuAl₆(PO₄)₄(OH)₈·4H₂O			2	156614,156617	484
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O			1	156810	890
Vanthoffite ()*	None	Na₆Mg(SO₄)₄	0.803	0.6	1	156478	16
Voltaite ()*	Voltaite	K₂Fe²⁺₅Fe³⁺₃Al(SO₄)₁₂·18H₂O			1	156801	111
Wairakite ()*	Analcime	Ca(Si₄Al₂)O₁₂·2H₂O			1	156771	73
Willemite ()*	Phenakite	Zn₂SiO₄			1	156612	303
Wollastonite ()*	Wollastonite	CaSiO₃			1	156738	1247

19 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	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID
NAVDAT-63198	0.64	0.6	0.62±0.02				63198	211730	Bertram Siding, Bertram, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-63204	0.803	0.657	0.73±0.073				63204	211730	Bertram Siding, Bertram, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-16044	27	21	24±3				16044	296644	Pebble Mountain, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-16046	27	21	24±3				16046	77038	Goshen Placer Mine, Pebble Mountain, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-16008	24.1	22.9	23.5±0.6				16008	77093	Mayflower Mine, Pebble Mountain, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-5354	35	28.6	31.8±3.2			plagioclase	5354	77093	Mayflower Mine, Pebble Mountain, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-16019	28.4	25.2	26.8±1.6				16019	77099	Million Dollar Gold Mine, Pebble Mountain, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
Giersdorf_00000390	27.4	24.2	25.8±1.6	K-Ar	Age suspected to be older than the Kinter formation found in the Chocolate Mountains.		UAKA-68-09	216264	Picacho, Picacho District, Chocolate Mts, Imperial Co., California, USA	Picacho Peak Quad.	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000391	26.9	23.9	25.4±1.5	K-Ar			UAKA-67-01	216264	Picacho, Picacho District, Chocolate Mts, Imperial Co., California, USA	Picacho Peak Quad.	Shafiqullah et al. (1980)	AGSD12_201
NAVDAT-15997	24.1	22.9	23.5±0.6				15997	77039	Gulch Placer Mine (California Picacho; Picacho Basin Placers), Picacho, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-15999	24.1	22.9	23.5±0.6				15999	77039	Gulch Placer Mine (California Picacho; Picacho Basin Placers), Picacho, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-16030	27	21	24±3				16030	296626	Picacho Peak, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-16041	22.4	21.2	21.8±0.6				16041	296626	Picacho Peak, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-16048	27	21	24±3				16048	296626	Picacho Peak, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-16049	27	21	24±3				16049	296626	Picacho Peak, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-16009	24.1	22.9	23.5±0.6				16009	76974	California Picacho Mine, Picacho Peak, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-16045	27	21	24±3				16045	77144	Roadside Mine (Picacho Peak Project; Christie), Picacho Peak, Picacho District, Chocolate Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-126143	106	102	104±2				126143	222161	Boulder Park, Jacumba District, Jacumba Mts, Imperial Co., California, USA		NAVDAT	NAVDAT
NAVDAT-29575	1.8	0	0.9±0.9				29575	77173	Superlite Pumice Deposit, Niland, Imperial Co., California, USA		NAVDAT	NAVDAT

Sample	Source Locality	Reference URL
R050561	Cargo Muchacho Mts, Imperial Co., California, USA	https://rruff.info/R050561
X050132	Ogilby, Imperial Co., California, USA	https://rruff.info/X050132
R070322	Salton Sea, Imperial Co., California, USA	https://rruff.info/R070322
R060649	Salton Sea, Imperial Co., California, USA	https://rruff.info/R060649
R120131	Salton Sea, Imperial Co., California, USA	https://rruff.info/R120131
R050166	Salton Sea, Imperial Co., California, USA	https://rruff.info/R050166

All locality data graciously provided by mindat.org

All age data...