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:
Alta, Mineral Point Mining District, Ravalli Co., Montana, USA

mindat Locality ID: 250802
mindat URL: http://www.mindat.org/loc-250802.html

Tectonic Settings:

Total number of sublocalities beneath "Alta, Mineral Point Mining District, Ravalli Co., Montana, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Dark Star Group (Dark Star Claim; Sheep Creek Adit No. 1; Sheep Creek Adit No. 2)

Latitude: 45°37'8"N
Longitude: 114°17'55"W
Decimal Degree (lat, lon): 45.618888888889,-114.29861111111

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.

Ancylite	Apatite	Baryte	Chalcopyrite	Clay	Columbite	Corrensite	Molybdenite	Nickeline	None
Pyrite	Quartz

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 Ba C Ca Ce Cu F Fe H K Mg Mo Na Nb O P S Si Sr Ta Ti

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Ancylite Apatite Baryte Chalcopyrite Clay Columbite Corrensite Molybdenite Nickeline None
Pyrite Quartz

11 IMA Minerals at location:

Ancylite-(Ce) ()*	Baryte ()*	Chalcopyrite ()*	Columbite-(Fe) ()*	Fersmite ()*
Fluorapatite ()*	Hydrobiotite ()*	Molybdenite ()*	Pyrite ()*	Pyrrhotite ()*
Quartz ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Ancylite-(Ce) ()*	Ancylite	CeSr(CO₃)₂(OH)·H₂O	1	233257	92
Baryte ()*	Baryte	Ba(SO₄)	1	233257	11547
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	233257	27198
Columbite-(Fe) ()*	Columbite	Fe²⁺Nb₂O₆	1	233257	518
Fersmite ()*	Columbite	CaNb₂O₆	1	233257	83
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	1	233257	2740
Hydrobiotite ()*	Corrensite Clay	K(Mg,Fe²⁺)₆(Si,Al)₈O₂₀(OH)₄·nH₂O	1	233257	49
Molybdenite ()*	Molybdenite	MoS₂	1	233257	5800
Pyrite ()*	Pyrite	FeS₂	1	233257	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	1	233257	9056
Quartz ()*	Quartz	SiO₂	1	233257	61156

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...