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:
Portal, California District, Chiricahua Mts, Cochise Co., Arizona, USA

Oldest recorded age at locality: 0
Youngest recorded age at locality: 0

mindat Locality ID: 251438
mindat URL: http://www.mindat.org/loc-251438.html

Tectonic Settings:

Total number of sublocalities beneath "Portal, California District, Chiricahua Mts, Cochise Co., Arizona, USA": 4
Total number of bottom-level sublocalities: 3

Number of Child Localities: 1
Child Localities:
King Ainsworth Mine Group (Oregon Mine Group)

Latitude: 31°58'40"N
Longitude: 109°11'16"W
Decimal Degree (lat, lon): 31.977777777778,-109.18777777778

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.

Amorphous	Aragonite	Baryte	Calcite	Chalcopyrite	Clinozoisite	Epidote	Malachite	None	Not in a structural group
Pyrite	Quartz	Rocksalt	Scheelite	Sphalerite	Wollastonite

Anglesite ()*	Aragonite ()*	Calcite ()*	Cerussite ()*	Chalcopyrite ()*
Epidote ()*	Galena ()*	Hemimorphite ()*	Hydrozincite ()*	Malachite ()*
Opal ()*	Powellite ()*	Pyrite ()*	Quartz ()*	Rosasite ()*
Scheelite ()*	Smithsonite ()*	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 C Ca Cu Fe H Mo O Pb S Si W Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Aragonite Baryte Calcite Chalcopyrite Clinozoisite Epidote Malachite None Not in a structural group
Pyrite Quartz Rocksalt Scheelite Sphalerite Wollastonite

19 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Anglesite ()*	Baryte	Pb(SO₄)	1	136621	2734
Aragonite ()*	Aragonite	Ca(CO₃)	1	136621	3250
Calcite ()*	Calcite	Ca(CO₃)	1	136621	27770
Cerussite ()*	Aragonite	Pb(CO₃)	1	136621	4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	136621	27198
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	136621	8173
Galena ()*	Rocksalt	PbS	1	136621	24243
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O	1	136621	1689
Hydrozincite ()*	None	Zn₅(CO₃)₂(OH)₆	1	136621	1066
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	1	136621	12537
Opal ()*	Amorphous	SiO₂·nH₂O	1	136621	2994
Powellite ()*	Scheelite	Ca(MoO₄)	1	136621	494
Pyrite ()*	Pyrite	FeS₂	1	136621	39462
Quartz ()*	Quartz	SiO₂	1	136621	61156
Rosasite ()*	Malachite	CuZn(CO₃)(OH)₂	1	136621	454
Scheelite ()*	Scheelite	Ca(WO₄)	4	136621,136622,136623,136624	4894
Smithsonite ()*	Calcite	Zn(CO₃)	1	136621	2473
Sphalerite ()*	Sphalerite	ZnS	1	136621	21482
Wollastonite ()*	Wollastonite	CaSiO₃	1	136621	1247

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_554	Near-surface occurrence. Recently forming oxalate associated with cave deposits, in Cochise County, Arizona.

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
	Michelle_554	0	0	Recent		Age of whewellite mineralization	high				Yes		Whewellite		15570	Cochise Co., Arizona, USA	Cochise County	Hofmann and Bernasconi (1998)	10.1016/S0009-2541(98)00043-6	CG149_127	Described as "recent cave deposits."

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...