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:
Garnet Hill Mine (Rheona Claim), Garnet Hill, Calaveras Co., California, USA

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

mindat Locality ID: 12394
mindat URL: http://www.mindat.org/loc-12394.html

Tectonic Settings:

Total number of sublocalities beneath "Garnet Hill Mine (Rheona Claim), Garnet Hill, Calaveras Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 38°28'48"N
Longitude: 120°15'7"W
Decimal Degree (lat, lon): 38.48,-120.25194444444

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.

Amphibole	Chalcopyrite	Clay	Clinozoisite	Copper	Epidote	Garnet	Molybdenite	None	Not in a structural group
Quartz	Scheelite	Stilpnomelane	Talc	Titanite	Vesuvianite	Zircon

Actinolite ()*	Andradite ()*	Chalcopyrite ()*	Epidote ()*	Ferro-actinolite ()*
Gold ()*	Laumontite ()*	Molybdenite ()*	Powellite ()*	Quartz ()*
Riebeckite ()*	Scheelite ()*	Stilpnomelane ()*	Talc ()*	Titanite ()*
Tremolite ()*	Vesuvianite ()*	Zircon ()*

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 Ca Cu F Fe H K Mg Mo Na O S Si Ti W Zr

Elements from minerals reported directly at this locality: Al Au Ca Cu F Fe H K Mg Mo Na O S Si Ti W Zr

Structural Groups for minerals in this locality:
Amphibole Chalcopyrite Clay Clinozoisite Copper Epidote Garnet Molybdenite None Not in a structural group
Quartz Scheelite Stilpnomelane Talc Titanite Vesuvianite Zircon

18 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	100	100	3419
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	100	100	1534
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	100	100	27198
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	100	100	8173
Ferro-actinolite ()*	Amphibole	Ca₂(Mg_2.5-0.0Fe²⁺_2.5-5.0)Si₈O₂₂(OH)₂	100	100	129
Gold ()*	Copper	Au	100	100	30554
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	100	100	1271
Molybdenite ()*	Molybdenite	MoS₂	100	100	5800
Powellite ()*	Scheelite	Ca(MoO₄)	100	100	494
Quartz ()*	Quartz	SiO₂	100	100	61156
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂	100	100	375
Scheelite ()*	Scheelite	Ca(WO₄)	100	100	4894
Stilpnomelane ()*	Stilpnomelane Clay	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O	100	100	456
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	100	100	3337
Titanite ()*	Titanite	CaTi(SiO₄)O	100	100	4899
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	100	100	2562
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀	100	100	1395
Zircon ()*	Zircon	Zr(SiO₄)	100	100	5251

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...