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:
Eisenhower Mine (Eisenhower Property/group; Mission Extension; Palo Verde Mine; Palo Verde Copper Deposit), Mission Complex, San Xavier, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA

Oldest recorded age at locality: 67
Youngest recorded age at locality: 58

mindat Locality ID: 32003
mindat URL: http://www.mindat.org/loc-32003.html

Tectonic Settings:

Total number of sublocalities beneath "Eisenhower Mine (Eisenhower Property/group; Mission Extension; Palo Verde Mine; Palo Verde Copper Deposit), Mission Complex, San Xavier, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 31°59'52"N
Longitude: 111°4'"W
Decimal Degree (lat, lon): 31.997777777778,-111.06666666667

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	Chalcopyrite	Clay	Corundum	Kaolinite	Malachite	Molybdenite	None	Pyrite	Pyroxene
Sphalerite	Tetrahedrite

Bornite ()*	Chalcocite ()*	Chalcopyrite ()*	Chrysocolla ()*	Diopside ()*
Hematite ()*	Kaolinite ()*	Malachite ()*	Molybdenite ()*	Pyrite ()*
Sphalerite ()*	Tennantite-(Fe) ()*

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 As C Ca Cu Fe H Mg Mo O S Si Zn

Elements from minerals reported directly at this locality: Al As C Ca Cu Fe H Mg Mo O S Si Zn

Structural Groups for minerals in this locality:
Allophane Chalcopyrite Clay Corundum Kaolinite Malachite Molybdenite None Pyrite Pyroxene
Sphalerite Tetrahedrite

12 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Bornite ()*	None	Cu₅FeS₄	67	58	5516
Chalcocite ()*	None	Cu₂S	67	58	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	67	58	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	67	58	3531
Diopside ()*	Pyroxene	CaMgSi₂O₆	67	58	4135
Hematite ()*	Corundum	Fe₂O₃	67	58	14640
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	67	58	5591
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	67	58	12537
Molybdenite ()*	Molybdenite	MoS₂	67	58	5800
Pyrite ()*	Pyrite	FeS₂	67	58	39462
Sphalerite ()*	Sphalerite	ZnS	67	58	21482
Tennantite-(Fe) ()*	Tetrahedrite	Cu₆(Cu₄Fe₂)As₄S₁₃	67	58	1803

5 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	Sample Num	Age from other Locality	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
EG94_211-00050	67	67	67	Pb-Pb	whole rock?	KD-GR2-1	Yes	22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Sierrita	Bouse et al. (1999)	10.2113/gsecongeo.94.2.211	EG94_211
EG94_211-00051	67	67	67	Pb-Pb	whole rock?	D-MR2-2	Yes	22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Sierrita	Bouse et al. (1999)	10.2113/gsecongeo.94.2.211	EG94_211
EG94_211-00052	63	63	63	Pb-Pb	whole rock?	RS-MR-5	Yes	22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Sierrita	Bouse et al. (1999)	10.2113/gsecongeo.94.2.211	EG94_211
EG94_211-00053	58	58	58	Pb-Pb	whole rock?	TWB-Pa	Yes	22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Sierrita	Bouse et al. (1999)	10.2113/gsecongeo.94.2.211	EG94_211
EG94_211-00054	58	58	58	Pb-Pb	whole rock?	QL-85-1	Yes	22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Sierrita	Bouse et al. (1999)	10.2113/gsecongeo.94.2.211	EG94_211

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...