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:
Atlas Mine (BS & K Mine; B.S. & K. Mine; Atlas Elizibeth Group [sic]), Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USA

Oldest recorded age at locality: 69
Youngest recorded age at locality: 66

mindat Locality ID: 36337
mindat URL: http://www.mindat.org/loc-36337.html

Tectonic Settings:

Total number of sublocalities beneath "Atlas Mine (BS & K Mine; B.S. & K. Mine; Atlas Elizibeth Group [sic]), Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 32°25'46"N
Longitude: 111°32'48"W
Decimal Degree (lat, lon): 32.429444444444,-111.54666666667

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.

Baryte	Calcite	Chalcanthite	Chalcopyrite	Clinozoisite	Copper	Epidote	Garnet	None	Pyrite
Pyroxene	Rocksalt	Sphalerite	Spinel	Wollastonite

Andradite ()*	Baryte ()*	Bornite ()*	Calcite ()*	Chalcanthite ()*
Chalcopyrite ()*	Epidote ()*	Galena ()*	Gold ()*	Grossular ()*
Hedenbergite ()*	Magnetite ()*	Pyrite ()*	Sphalerite ()*	Wollastonite ()*

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 O Pb S Si Zn

Elements from minerals reported directly at this locality: Al Au Ba C Ca Cu Fe H O Pb S Si Zn

Structural Groups for minerals in this locality:
Baryte Calcite Chalcanthite Chalcopyrite Clinozoisite Copper Epidote Garnet None Pyrite
Pyroxene Rocksalt Sphalerite Spinel Wollastonite

15 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	69	66	1534
Baryte ()*	Baryte	Ba(SO₄)	69	66	11547
Bornite ()*	None	Cu₅FeS₄	69	66	5516
Calcite ()*	Calcite	Ca(CO₃)	69	66	27770
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O	69	66	925
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	69	66	27198
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	69	66	8173
Galena ()*	Rocksalt	PbS	69	66	24243
Gold ()*	Copper	Au	69	66	30554
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	69	66	1544
Hedenbergite ()*	Pyroxene	CaFe²⁺Si₂O₆	69	66	741
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	69	66	14899
Pyrite ()*	Pyrite	FeS₂	69	66	39462
Sphalerite ()*	Sphalerite	ZnS	69	66	21482
Wollastonite ()*	Wollastonite	CaSiO₃	69	66	1247

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
	PorphCu-00087	69	66	69-66							Yes		Actinolite, Chalcanthite, Chalcocite, Chalcopyrite, Chrysocolla, Copper, Cuprite, Diopside, Epidote, Jarosite, Malachite, Molybdenite, Pyrite, Tenorite, Wollastonite	Cu	31299	Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USA	Silver Bell	Singer et al. (2008)		USGSOFR2008_1155

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...