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:
East Fork District, Custer Co., Idaho, USA

mindat Locality ID: 39486
mindat URL: http://www.mindat.org/loc-39486.html

Tectonic Settings:

Total number of sublocalities beneath "East Fork District, Custer Co., Idaho, USA": 19
Total number of bottom-level sublocalities: 18

Number of Child Localities: 18
Child Localities:
Aztec Mine (Fisher)
Black Rock No. 11 And 15 Prospects
Blackbird
Boulder Creek
Cirque Wall Prospect
Confidence Mine (Lucky Strike)
Enderlin Occurrence
Enderlin Prospect
Iope Group
Last Resort Vein Occurrence (Margie Bell Vein)
Meadowview Prospect
Phantom Vein Occurrence
Reconstruction Vein Occurrence
Red Robin No. 1 Prospect
Road Prospect
Tyrolese Prospect (Reed And Davidson Group)
Washington Vein Prospects (Black Rock)
Yacomella Veins Occurrence

Latitude: 44°1'30"N
Longitude: 114°39'13"W
Decimal Degree (lat, lon): 44.025,-114.65361111111

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	Aragonite	Calcite	Chalcopyrite	Clinozoisite	Epidote	Malachite	Molybdenite	Nickeline	None
Pyrite	Pyroxene	Quartz	Rocksalt	Scheelite	Sphalerite

Calcite ()*	Cerussite ()*	Chalcopyrite ()*	Diopside ()*	Epidote ()*
Galena ()*	Jamesonite ()*	Malachite ()*	Molybdenite ()*	Pyrite ()*
Pyrrhotite ()*	Quartz ()*	Scheelite ()*	Sphalerite ()*	Tremolite ()*

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 C Ca Cu Fe H Mg Mo O Pb S Sb Si W Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Aragonite Calcite Chalcopyrite Clinozoisite Epidote Malachite Molybdenite Nickeline None
Pyrite Pyroxene Quartz Rocksalt Scheelite Sphalerite

15 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Calcite ()*	Calcite	Ca(CO₃)	2	206943,206950	27770
Cerussite ()*	Aragonite	Pb(CO₃)	1	206945	4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2	206943,206950	27198
Diopside ()*	Pyroxene	CaMgSi₂O₆	1	206950	4135
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	206950	8173
Galena ()*	Rocksalt	PbS	7	206943,206945,206949,206950,206952,206955,206956	24243
Jamesonite ()*	None	Pb₄FeSb₆S₁₄	1	206957	784
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	1	206943	12537
Molybdenite ()*	Molybdenite	MoS₂	1	206943	5800
Pyrite ()*	Pyrite	FeS₂	8	206943,206945,206949,206950,206952,206955,206956,206957	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	3	206950,206956,206957	9056
Quartz ()*	Quartz	SiO₂	7	206943,206945,206949,206950,206952,206955,206957	61156
Scheelite ()*	Scheelite	Ca(WO₄)	2	206943,206950	4894
Sphalerite ()*	Sphalerite	ZnS	4	206943,206945,206950,206956	21482
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	1	206950	2562

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...