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:
Lakes District (Lake District; Mammoth District), Mono Co., California, USA

Oldest recorded age at locality: 3.1
Youngest recorded age at locality: 0.18

mindat Locality ID: 208566
mindat URL: http://www.mindat.org/loc-208566.html

Tectonic Settings:

Total number of sublocalities beneath "Lakes District (Lake District; Mammoth District), Mono Co., California, USA": 14
Total number of bottom-level sublocalities: 11

Number of Child Localities: 1
Child Localities:
Mammoth Lakes

Latitude: 37°36'11"N
Longitude: 118°59'11"W
Decimal Degree (lat, lon): 37.603055555556,-118.98638888889

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	Amphibole	Arsenopyrite	Baryte	Calcite	Chalcopyrite	Clinozoisite	Copper	Epidote	Fluorite
Garnet	Nickeline	None	Pyrite	Pyroxene	Quartz	Rocksalt	Sphalerite

Acanthite ()*	Arsenopyrite ()*	Baryte ()*	Bornite ()*	Calcite ()*
Chalcopyrite ()*	Clinozoisite ()*	Diopside ()*	Epidote ()*	Galena ()*
Gold ()*	Grossular ()*	Hedenbergite ()*	Pyrite ()*	Pyrrhotite ()*
Quartz ()*	Silver ()*	Sphalerite ()*	Tremolite ()*	Uraninite ()*
Uranophane-α ()*

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 Ba C Ca Cu Fe H Mg O Pb S Si U Zn

Elements from minerals reported directly at this locality: Cu Fe S

Structural Groups for minerals in this locality:
Acanthite Amphibole Arsenopyrite Baryte Calcite Chalcopyrite Clinozoisite Copper Epidote Fluorite
Garnet Nickeline None Pyrite Pyroxene Quartz Rocksalt Sphalerite

21 IMA Minerals at location:

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	3.1	0.18	1	164321	2793
Arsenopyrite ()*	Arsenopyrite	FeAsS	3.1	0.18	1	164325	9052
Baryte ()*	Baryte	Ba(SO₄)	3.1	0.18	2	164325,164327	11547
Bornite ()*	None	Cu₅FeS₄	3.1	0.18	0		5516
Calcite ()*	Calcite	Ca(CO₃)	3.1	0.18	1	164321	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	3.1	0.18	1	164321	27198
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	0.22	0.18	1	164324	1025
Diopside ()*	Pyroxene	CaMgSi₂O₆	0.22	0.18	1	164324	4135
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	3.1	0.18	1	164323	8173
Galena ()*	Rocksalt	PbS	3.1	0.18	1	164321	24243
Gold ()*	Copper	Au	3.1	0.18	5	164319,164320,164321,164323,164325	30554
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	0.22	0.18	1	164324	1544
Hedenbergite ()*	Pyroxene	CaFe²⁺Si₂O₆	0.22	0.18	1	164324	741
Pyrite ()*	Pyrite	FeS₂	3.1	0.18	3	164319,164321,164325	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	3.1	0.18	1	164321	9056
Quartz ()*	Quartz	SiO₂	3.1	0.18	6	164315,164319,164320,164321,164323,164325	61156
Silver ()*	Copper	Ag	3.1	0.18	1	164321	5186
Sphalerite ()*	Sphalerite	ZnS	3.1	0.18	1	164321	21482
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	0.22	0.18	1	164324	2562
Uraninite ()*	Fluorite	UO₂	3.1	0.18	1	164318	2718
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O	3.1	0.18	1	164318	890

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
	NAVDAT-7548	3.1	3.1	3.1±0					7548						209143	Mammoth Lakes, Lakes District (Lake District; Mammoth District), Mono Co., California, USA		NAVDAT		NAVDAT
	NAVDAT-18286	0.22	0.18	0.2±0.02					18286						83282	Pappas Prospect (Horseshoe No. 1), Mammoth Lakes, Lakes District (Lake District; Mammoth District), Mono Co., California, USA		NAVDAT		NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...