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:
Summit Valley Mining District, Silver Bow Co., Montana, USA

Oldest recorded age at locality: 75.4
Youngest recorded age at locality: 73.6

mindat Locality ID: 220375
mindat URL: http://www.mindat.org/loc-220375.html

Tectonic Settings:

Total number of sublocalities beneath "Summit Valley Mining District, Silver Bow Co., Montana, USA": 31
Total number of bottom-level sublocalities: 31

Number of Child Localities: 31
Child Localities:
Agnes-Highland Group (Highland Mine)
Anna Mine
Best Hope Mine
Blue Vein Mine
Britannia (Western World)
Colorado Tailings
Despatch
Eagle Bird-Kitty Morris Prospect
Gavin Placer
General Sheridan Claim
Gold Stream
Good Luck Mine
Hyde Park
Iron Clad Mine
Isele And Tiger Claims (Asele)
Janney Pegmatite Occurrence (Janney Station)
Jewel Mine
Mooney Claim
Pentfield Lode Prospect
Plainview Lode Occurrence
Prices Gulch Occurrence (Placer Mines Inc.)
Rising Sun Claims
Shonbar Mine
Shorty
Shorty (Addition)
Spur Claim
Tecumseh Mine
Tzarena Mine (Czarena; Cole Adit; Black Chief Lode)
Unnamed Manganese Mine (MRDS - 10019811)
Unnamed Minerals (MRDS - 10270629)
Wrong Font Claims

Latitude: 45°58'24"N
Longitude: 112°33'6"W
Decimal Degree (lat, lon): 45.973333333333,-112.55166666667

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	Diaspore	Feldspar	Molybdenite	None	Pyrite	Quartz	Rhodonite	Rocksalt	Sphalerite
Stibnite

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 Fe H K Mn Mo O Pb S Sb Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Calcite Diaspore Feldspar Molybdenite None Pyrite Quartz Rhodonite Rocksalt Sphalerite
Stibnite

11 IMA Minerals at location:

Ankerite ()*	Galena ()*	Goethite ()*	Microcline ()*	Molybdenite ()*
Pyrite ()*	Quartz ()*	Rhodochrosite ()*	Rhodonite ()*	Sphalerite ()*
Stibnite ()*

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	234053	3092
Galena ()*	Rocksalt	PbS	2	234046,234067	24243
Goethite ()*	Diaspore	FeO(OH)	1	234054	7437
Microcline ()*	Feldspar	K(AlSi₃O₈)	1	234054	4924
Molybdenite ()*	Molybdenite	MoS₂	2	234057,234058	5800
Pyrite ()*	Pyrite	FeS₂	4	234054,234057,234058,234067	39462
Quartz ()*	Quartz	SiO₂	4	234054,234057,234058,234067	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)	5	234053,234061,234065,234066,234067	1711
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)	1	234066	969
Sphalerite ()*	Sphalerite	ZnS	2	234046,234067	21482
Stibnite ()*	Stibnite	Sb₂S₃	2	234054,234056	3418

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-76258	75.4	73.6	74.5±0.9					76258						164535	Shorty (Addition), Summit Valley Mining District, Silver Bow Co., Montana, USA		NAVDAT		NAVDAT

All locality data graciously provided by mindat.org

All age data...