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:
Mokelumne Hill District, East Belt, Calaveras Co., California, USA

Oldest recorded age at locality: 100
Youngest recorded age at locality: 100

mindat Locality ID: 243933
mindat URL: http://www.mindat.org/loc-243933.html

Tectonic Settings:

Total number of sublocalities beneath "Mokelumne Hill District, East Belt, Calaveras Co., California, USA": 101
Total number of bottom-level sublocalities: 97

Number of Child Localities: 2
Child Localities:
Golden Gate Hill
Mokelumne Hill

Latitude: 38°16'14"N
Longitude: 120°42'53"W
Decimal Degree (lat, lon): 38.270555555556,-120.71472222222

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.

Amorphous	Clay	Copper	Feldspar	Mica	Nickeline	None	Pyrite	Quartz	Rocksalt
Sphalerite	Stibnite	Tourmaline

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: Al Au B Fe H K Na O Os Pb Pt S Sb Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Clay Copper Feldspar Mica Nickeline None Pyrite Quartz Rocksalt
Sphalerite Stibnite Tourmaline

14 IMA Minerals at location:

Galena ()*	Gold ()*	Jamesonite ()*	Muscovite ()*	Opal ()*
Osmium ()*	Platinum ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*
Sanidine ()*	Schorl ()*	Sphalerite ()*	Stibnite ()*

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
Galena ()*	Rocksalt	PbS	100	100	3	152085,152100,152118	24243
Gold ()*	Copper	Au	100	100	75	152048,152049,152050,152051,152052,152053,152055,152056,152058,152059,152060,152063,152064,152065,152066,152067,152069,152070,152071,152073,152074,152075,152076,152078,152082,152083,152084,152085,152086,152087,152088,152090,152092,152093,152094,152095,152096,152097,152098,152099,152101,152103,152104,152105,152106,152108,152109,152110,152111,152113,152114,152115,152116,152117,152118,152119,152120,152121,152123,152124,152125,152126,152127,152128,152129,152130,152133,152134,152135,152136,152139,152140,152141,152142,152147	30554
Jamesonite ()*	None	Pb₄FeSb₆S₁₄	100	100	1	152082	784
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	100	100	1	152102	17380
Opal ()*	Amorphous	SiO₂·nH₂O	100	100	4	152092,152093,152094,152117	2994
Osmium ()*	None	Os	100	100	1	152088	169
Platinum ()*	Copper	Pt	100	100	1	152088	485
Pyrite ()*	Pyrite	FeS₂	100	100	2	152085,152088	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	100	100	1	152100	9056
Quartz ()*	Quartz	SiO₂	100	100	42	152053,152065,152067,152070,152071,152075,152076,152082,152083,152085,152089,152092,152093,152094,152097,152100,152105,152106,152108,152109,152110,152111,152113,152114,152115,152116,152118,152119,152120,152121,152123,152125,152127,152129,152130,152132,152135,152139,152140,152141,152142,152145	61156
Sanidine ()*	Feldspar	K(AlSi₃O₈)	100	100	1	152107	598
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	100	100	1	152082	2705
Sphalerite ()*	Sphalerite	ZnS	100	100	1	152085	21482
Stibnite ()*	Stibnite	Sb₂S₃	100	100	2	152082,152137	3418

1 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
	Mo-00156	100	100								Yes		Molybdenite	Mo	16293	Calaveras Co., California, USA	Calaveras County	Brock (1972)	10.1130/0016-7606(1972)83[3391:GOGHSC]2.0.CO;2	GSAB83_3391

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...