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:
Blue Cloud Mining District, Lewis And Clark Co., Montana, USA

mindat Locality ID: 186131
mindat URL: http://www.mindat.org/loc-186131.html

Tectonic Settings:

Total number of sublocalities beneath "Blue Cloud Mining District, Lewis And Clark Co., Montana, USA": 7
Total number of bottom-level sublocalities: 7

Number of Child Localities: 7
Child Localities:
Anderson Prospect
Blue Cloud Mining Company Property
Blue Cloud Occurrence
Dutro Mine (Old Dominion)
Kain Mine
Perry Claims (Fairview Claims)
Silver Coin Mine

Latitude: 46°36'9"N
Longitude: 112°10'10"W
Decimal Degree (lat, lon): 46.6025,-112.16944444444

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.

Acanthite	Amorphous	Amphibole	Aragonite	Calcite	Clay	Copper	Descloizite	Molybdenite	None
Pyrochlore	Quartz	Rocksalt	Rutile	Scheelite	Smectite-vermiculite

Acanthite ()*	Calcite ()*	Cassiterite ()*	Cerussite ()*	Chlorargyrite ()*
Descloizite ()*	Dolomite ()*	Gold ()*	Molybdenite ()*	Mottramite ()*
Nontronite ()*	Opal ()*	Quartz ()*	Scheelite ()*	Stibiconite ()*
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: Ag Al Au C Ca Cl Cu Fe H Mg Mo Na O Pb S Sb Si Sn V W Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Amorphous Amphibole Aragonite Calcite Clay Copper Descloizite Molybdenite None
Pyrochlore Quartz Rocksalt Rutile Scheelite Smectite-vermiculite

16 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Acanthite ()*	Acanthite	Ag₂S	1	229959	2793
Calcite ()*	Calcite	Ca(CO₃)	2	229955,229959	27770
Cassiterite ()*	Rutile	SnO₂	1	229956	5171
Cerussite ()*	Aragonite	Pb(CO₃)	1	229959	4979
Chlorargyrite ()*	Rocksalt	AgCl	1	229959	1382
Descloizite ()*	Descloizite	PbZn(VO₄)(OH)	1	229959	378
Dolomite ()*	None	CaMg(CO₃)₂	1	229956	9895
Gold ()*	Copper	Au	4	229953,229954,229957,229959	30554
Molybdenite ()*	Molybdenite	MoS₂	1	229953	5800
Mottramite ()*	Descloizite	PbCu(VO₄)(OH)	1	229959	362
Nontronite ()*	Clay Smectite-vermiculite	Na_0.3Fe³⁺₂(Si,Al)₄O₁₀(OH)₂·nH₂O	1	229959	471
Opal ()*	Amorphous	SiO₂·nH₂O	1	229956	2994
Quartz ()*	Quartz	SiO₂	4	229955,229956,229958,229959	61156
Scheelite ()*	Scheelite	Ca(WO₄)	2	229953,229955	4894
Stibiconite ()*	Pyrochlore	Sb³⁺Sb⁵⁺₂O₆(OH)	1	229959	446
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	1	229956	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...