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:
Rock Creek Mining District, Beaverhead Co., Montana, USA

Oldest recorded age at locality: 71.5
Youngest recorded age at locality: 67.5

mindat Locality ID: 220355
mindat URL: http://www.mindat.org/loc-220355.html

Tectonic Settings:

Total number of sublocalities beneath "Rock Creek Mining District, Beaverhead Co., Montana, USA": 7
Total number of bottom-level sublocalities: 7

Number of Child Localities: 7
Child Localities:
Browns Lake Mine
Browns Lake-Lost Creek Area Occurrence
Fluorescent Claims (Star Claims; Mammoth Adit)
Lentung Prospect (Browns Lake Tungsten)
Mammoth Adit Occurrence
Star Claims
Unnamed Tungsten Occurrence (MRDS - 10245173)

Latitude: 45°31'45"N
Longitude: 112°50'17"W
Decimal Degree (lat, lon): 45.529166666667,-112.83805555556

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.

Chalcopyrite	Garnet	Malachite	None	Not in a structural group	Scheelite	Spinel

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: C Ca Cu Fe H Mo O S Si W

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Chalcopyrite Garnet Malachite None Not in a structural group Scheelite Spinel

8 IMA Minerals at location:

Andradite ()*	Azurite ()*	Bornite ()*	Chalcopyrite ()*	Magnetite ()*
Malachite ()*	Powellite ()*	Scheelite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	1	226779	1534
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	1	226779	5509
Bornite ()*	None	Cu₅FeS₄	1	226775	5516
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	226775	27198
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	226775	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	2	226775,226779	12537
Powellite ()*	Scheelite	Ca(MoO₄)	1	226777	494
Scheelite ()*	Scheelite	Ca(WO₄)	4	226775,226777,226779,226780	4894

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	NAVDAT-3668	71.5	67.5	69.5±2				hornblende	3668						162733	Lentung Prospect (Browns Lake Tungsten), Rock Creek Mining District, Beaverhead Co., Montana, USA		NAVDAT		NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...