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:
Omega Mine (Omega Tunnel; Omega Extension Mine), Monument Mountain, Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA

Oldest recorded age at locality: 62
Youngest recorded age at locality: 56

mindat Locality ID: 5437
mindat URL: http://www.mindat.org/loc-5437.html

Tectonic Settings:

Total number of sublocalities beneath "Omega Mine (Omega Tunnel; Omega Extension Mine), Monument Mountain, Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 31°51'22"N
Longitude: 110°46'9"W
Decimal Degree (lat, lon): 31.856111111111,-110.76916666667

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	Alunite	Amorphous	Amphibole	Brochantite	Calcite	Chalcanthite	Chalcopyrite	Clay	Clinozoisite
Copper	Corundum	Diaspore	Epidote	Fluorite	Gypsum	Lepidocrocite	Malachite	Mica	None
Not in a structural group	Plancheite	Pyrite	Quartz	Rocksalt	Scheelite	Sphalerite	Spinel

Actinolite ()*	Aurichalcite ()*	Azurite ()*	Brochantite ()*	Calcite ()*
Chalcanthite ()*	Chalcopyrite ()*	Chrysocolla ()*	Copper ()*	Cuprite ()*
Cuprotungstite ()*	Epidote ()*	Fluorite ()*	Galena ()*	Goethite ()*
Gypsum ()*	Hematite ()*	Hemimorphite ()*	Lepidocrocite ()*	Magnetite ()*
Malachite ()*	Muscovite ()*	Opal ()*	Osarizawaite ()*	Plancheite ()*
Powellite ()*	Pyrite ()*	Quartz ()*	Rosasite ()*	Scheelite ()*
Smithsonite ()*	Sphalerite ()*	Tremolite ()*	Wulfenite ()*

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 F Fe H K Mg Mo O Pb S Si W Zn

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

Structural Groups for minerals in this locality:
Allophane Alunite Amorphous Amphibole Brochantite Calcite Chalcanthite Chalcopyrite Clay Clinozoisite
Copper Corundum Diaspore Epidote Fluorite Gypsum Lepidocrocite Malachite Mica None
Not in a structural group Plancheite Pyrite Quartz Rocksalt Scheelite Sphalerite Spinel

34 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	62	56	3419
Aurichalcite ()*	None	(Zn,Cu)₅(CO₃)₂(OH)₆	62	56	919
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	62	56	5509
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆	62	56	1633
Calcite ()*	Calcite	Ca(CO₃)	62	56	27770
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O	62	56	925
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	62	56	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	62	56	3531
Copper ()*	Copper	Cu	62	56	3846
Cuprite ()*	Not in a structural group	Cu₂O	62	56	2970
Cuprotungstite ()*	None	Cu²⁺₃(WO₄)₂(OH)₂	62	56	67
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	62	56	8173
Fluorite ()*	Fluorite	CaF₂	62	56	9617
Galena ()*	Rocksalt	PbS	62	56	24243
Goethite ()*	Diaspore	FeO(OH)	62	56	7437
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	62	56	6890
Hematite ()*	Corundum	Fe₂O₃	62	56	14640
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O	62	56	1689
Lepidocrocite ()*	Lepidocrocite	Fe³⁺O(OH)	62	56	581
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	62	56	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	62	56	12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	62	56	17380
Opal ()*	Amorphous	SiO₂·nH₂O	62	56	2994
Osarizawaite ()*	Alunite	Pb(Al₂Cu²⁺)(SO₄)₂(OH)₆	62	56	64
Plancheite ()*	Plancheite	Cu₈(Si₄O₁₁)₂(OH)₄·H₂O	62	56	74
Powellite ()*	Scheelite	Ca(MoO₄)	62	56	494
Pyrite ()*	Pyrite	FeS₂	62	56	39462
Quartz ()*	Quartz	SiO₂	62	56	61156
Rosasite ()*	Malachite	CuZn(CO₃)(OH)₂	62	56	454
Scheelite ()*	Scheelite	Ca(WO₄)	62	56	4894
Smithsonite ()*	Calcite	Zn(CO₃)	62	56	2473
Sphalerite ()*	Sphalerite	ZnS	62	56	21482
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	62	56	2562
Wulfenite ()*	Scheelite	PbMoO₄	62	56	1655

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-00109	62	56	56-62							Yes		Bornite, Chalcopyrite, Chrysocolla, Diopside, Epidote, Galena, Gold, Magnetite, Molybdenite, Pyrite, Scheelite, Sphalerite, Wollastonite	Cu	49290	Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA	Helvetia	Singer et al. (2008)		USGSOFR2008_1155

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...