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:
Boulder Mountains Area, Jefferson Co., Montana, USA

mindat Locality ID: 186111
mindat URL: http://www.mindat.org/loc-186111.html

Tectonic Settings:

Total number of sublocalities beneath "Boulder Mountains Area, Jefferson Co., Montana, USA": 7
Total number of bottom-level sublocalities: 7

Number of Child Localities: 7
Child Localities:
Carlson Prospect (Jefferson Prospect; North Boulder Group)
Humbolt (Boyce)
Mae Lilly Mine (May Lillie Mine)
Montreal Star
North Boulder Lead
North Whitetail Basin Granite Quarry
Summit Mine (MRDS - 10148981)

Latitude: 46°13'1"N
Longitude: 112°21'18"W
Decimal Degree (lat, lon): 46.216944444444,-112.355

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.

Calcite	Chalcopyrite	Copper	Marcasite	None	Pyrite	Quartz	Rocksalt	Sphalerite	Stibnite
Tetrahedrite

Ankerite ()*	Bismuthinite ()*	Calcite ()*	Chalcopyrite ()*	Galena ()*
Gold ()*	Marcasite ()*	Pyrite ()*	Quartz ()*	Rhodochrosite ()*
Smithsonite ()*	Sphalerite ()*	Tetrahedrite-(Zn) ()*

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: Au Bi C Ca Cu Fe Mn O Pb S Sb Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Calcite Chalcopyrite Copper Marcasite None Pyrite Quartz Rocksalt Sphalerite Stibnite
Tetrahedrite

13 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	1	229110	3092
Bismuthinite ()*	Stibnite	Bi₂S₃	1	229113	1935
Calcite ()*	Calcite	Ca(CO₃)	1	229110	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2	229110,229113	27198
Galena ()*	Rocksalt	PbS	2	229110,229113	24243
Gold ()*	Copper	Au	4	229110,229111,229112,229113	30554
Marcasite ()*	Marcasite	FeS₂	1	229113	5674
Pyrite ()*	Pyrite	FeS₂	2	229110,229113	39462
Quartz ()*	Quartz	SiO₂	2	229110,229113	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)	1	229110	1711
Smithsonite ()*	Calcite	Zn(CO₃)	1	229110	2473
Sphalerite ()*	Sphalerite	ZnS	2	229110,229113	21482
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	2	229110,229113	5317

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...