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:
Keystone Mine, Tybo District, Hot Creek Range, Nye Co., Nevada, USA

Oldest recorded age at locality: 26.7
Youngest recorded age at locality: 26.7

mindat Locality ID: 40335
mindat URL: http://www.mindat.org/loc-40335.html

Tectonic Settings:

Total number of sublocalities beneath "Keystone Mine, Tybo District, Hot Creek Range, Nye Co., Nevada, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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.

Chalcopyrite	Clinozoisite	Epidote	None	Pyrite	Pyroxene	Quartz	Rocksalt	Sphalerite

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 Ca Cu Fe H Mg O Pb S Si Zn

Elements from minerals reported directly at this locality: Al Ca Cu Fe H Mg O Pb S Si Zn

Structural Groups for minerals in this locality:
Chalcopyrite Clinozoisite Epidote None Pyrite Pyroxene Quartz Rocksalt Sphalerite

8 IMA Minerals at location:

Bornite ()*	Chalcopyrite ()*	Diopside ()*	Epidote ()*	Galena ()*
Pyrite ()*	Quartz ()*	Sphalerite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Bornite ()*	None	Cu₅FeS₄	26.7	26.7	5516
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	26.7	26.7	27198
Diopside ()*	Pyroxene	CaMgSi₂O₆	26.7	26.7	4135
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	26.7	26.7	8173
Galena ()*	Rocksalt	PbS	26.7	26.7	24243
Pyrite ()*	Pyrite	FeS₂	26.7	26.7	39462
Quartz ()*	Quartz	SiO₂	26.7	26.7	61156
Sphalerite ()*	Sphalerite	ZnS	26.7	26.7	21482

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
	Hg-00092	26.7	26.7		Ar-Ar, K-Ar						Yes		Calomel, Cinnabar, Livingstonite, Mercury, Metacinnabar	Hg	37106	Tybo District, Hot Creek Range, Nye Co., Nevada, USA		Best et al. (1989); Best and Christiansen (1991); Sawyer et al. (1994)

All locality data graciously provided by mindat.org

All age data...