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:
Bear Gulch, Tidal Wave Mining District, Madison Co., Montana, USA

Oldest recorded age at locality: 70
Youngest recorded age at locality: 70

mindat Locality ID: 225127
mindat URL: http://www.mindat.org/loc-225127.html

Tectonic Settings:

Total number of sublocalities beneath "Bear Gulch, Tidal Wave Mining District, Madison Co., Montana, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Atlantic Claim
Blue Jay - Jay Gould Claims
Johnston - Moffet Copper (Mountain View)
Pritchett Mine
Royal Bear Claim (Aurora; Peter Claims)

Latitude: 45°36'11"N
Longitude: 112°11'15"W
Decimal Degree (lat, lon): 45.603055555556,-112.1875

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.

Allophane	Aragonite	Baryte	Calcite	Chalcopyrite	Clinozoisite	Copper	Corundum	Epidote	Malachite
None	Not in a structural group	Pyrite	Pyroxene	Quartz	Rocksalt	Sphalerite	Spinel	Tetrahedrite	Titanite

Azurite ()*	Baryte ()*	Bornite ()*	Calcite ()*	Cerussite ()*
Chalcocite ()*	Chalcopyrite ()*	Chrysocolla ()*	Copper ()*	Corundum ()*
Cuprite ()*	Diopside ()*	Epidote ()*	Galena ()*	Gold ()*
Magnetite ()*	Malachite ()*	Pyrite ()*	Quartz ()*	Siderite ()*
Sphalerite ()*	Tenorite ()*	Tetrahedrite-(Zn) ()*	Titanite ()*	Zoisite ()*

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 Au Ba C Ca Cu Fe H Mg O Pb S Sb Si Ti Zn

Elements from minerals reported directly at this locality: Al Ca H O Si Ti

Structural Groups for minerals in this locality:
Allophane Aragonite Baryte Calcite Chalcopyrite Clinozoisite Copper Corundum Epidote Malachite
None Not in a structural group Pyrite Pyroxene Quartz Rocksalt Sphalerite Spinel Tetrahedrite Titanite

25 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	70	70	1	231536	5509
Baryte ()*	Baryte	Ba(SO₄)	70	70	1	231535	11547
Bornite ()*	None	Cu₅FeS₄	70	70	2	231535,231536	5516
Calcite ()*	Calcite	Ca(CO₃)	70	70	1	231535	27770
Cerussite ()*	Aragonite	Pb(CO₃)	70	70	1	231538	4979
Chalcocite ()*	None	Cu₂S	70	70	1	231536	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	70	70	3	231535,231536,231538	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	70	70	1	231536	3531
Copper ()*	Copper	Cu	70	70	1	231536	3846
Corundum ()*	Corundum	Al₂O₃	70	70	1	231534	1797
Cuprite ()*	Not in a structural group	Cu₂O	70	70	1	231536	2970
Diopside ()*	Pyroxene	CaMgSi₂O₆	70	70	1	231536	4135
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	70	70	2	231534,231536	8173
Galena ()*	Rocksalt	PbS	70	70	2	231537,231538	24243
Gold ()*	Copper	Au	70	70	1	231535	30554
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	70	70	1	231536	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	70	70	1	231536	12537
Pyrite ()*	Pyrite	FeS₂	70	70	4	231535,231536,231537,231538	39462
Quartz ()*	Quartz	SiO₂	70	70	1	231535	61156
Siderite ()*	Calcite	Fe(CO₃)	70	70	1	231535	6417
Sphalerite ()*	Sphalerite	ZnS	70	70	1	231538	21482
Tenorite ()*	None	CuO	70	70	1	231536	1101
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	70	70	1	231535	5317
Titanite ()*	Titanite	CaTi(SiO₄)O	70	70	0		4899
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	70	70	0		1025

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
	Mo-00186	70	70								Yes		Molybdenite, Powellite, Wulfenite	Mo	23236	Madison Co., Montana, USA	Madison County	Gammons et al. (2006)	10.1007/s10230-006-0113-7	MWE25_70

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...