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:
Franco-American Mine (Nevada Dominion Mine; Blondin Mine), Pyramid District, Washoe Co., Nevada, USA

mindat Locality ID: 43299
mindat URL: http://www.mindat.org/loc-43299.html

Tectonic Settings:

Total number of sublocalities beneath "Franco-American Mine (Nevada Dominion Mine; Blondin Mine), Pyramid District, Washoe 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.

Baryte	Chalcanthite	Clay	Enargite	Feldspar	Hexahydrite	Mica	None	Not in a structural group	Pyrite
Quartz	Rocksalt	Sphalerite	Wurtzite

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 As Ba Cu Fe H K Mg Na O Pb S Si Zn

Elements from minerals reported directly at this locality: Al As Ba Cu Fe H K Mg Na O Pb S Si Zn

Structural Groups for minerals in this locality:
Baryte Chalcanthite Clay Enargite Feldspar Hexahydrite Mica None Not in a structural group Pyrite
Quartz Rocksalt Sphalerite Wurtzite

12 IMA Minerals at location:

Albite ()*	Alunite ()*	Alunogen ()*	Baryte ()*	Chalcanthite ()*
Enargite ()*	Galena ()*	Hexahydrite ()*	Muscovite ()*	Pyrite ()*
Quartz ()*	Sphalerite ()*

Mineral name	Structural Groups	IMA Formula	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	8803
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆	966
Alunogen ()*	Not in a structural group	Al₂(SO₄)₃(H₂O)₁₂·5H₂O	272
Baryte ()*	Baryte	Ba(SO₄)	11547
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O	925
Enargite ()*	Enargite Wurtzite	Cu₃AsS₄	910
Galena ()*	Rocksalt	PbS	24243
Hexahydrite ()*	Hexahydrite	Mg(SO₄)·6H₂O	251
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	17380
Pyrite ()*	Pyrite	FeS₂	39462
Quartz ()*	Quartz	SiO₂	61156
Sphalerite ()*	Sphalerite	ZnS	21482

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...