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:
Mazama Mine (Lesley Mine), Mazama, Mazama District, Okanogan Co., Washington, USA

Oldest recorded age at locality: 90
Youngest recorded age at locality: 87

mindat Locality ID: 22204
mindat URL: http://www.mindat.org/loc-22204.html

Tectonic Settings:

Total number of sublocalities beneath "Mazama Mine (Lesley Mine), Mazama, Mazama District, Okanogan Co., Washington, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 48°36'52"N
Longitude: 120°22'55"W
Decimal Degree (lat, lon): 48.614444444444,-120.38194444444

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	Amphibole	Arsenopyrite	Chalcopyrite	Clay	Clinozoisite	Copper	Covellite	Diaspore	Epidote
Kaolinite	Malachite	Mica	Molybdenite	None	Not in a structural group	Pyrite	Rocksalt	Smectite-vermiculite	Spinel

Actinolite ()*	Anhydrite ()*	Arsenopyrite ()*	Azurite ()*	Bornite ()*
Chalcopyrite ()*	Chrysocolla ()*	Copper ()*	Covellite ()*	Epidote ()*
Galena ()*	Goethite ()*	Kaolinite ()*	Magnetite ()*	Malachite ()*
Molybdenite ()*	Montmorillonite ()*	Muscovite ()*	Pyrite ()*

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 K Mg Mo Na O Pb S Si

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

Structural Groups for minerals in this locality:
Allophane Amphibole Arsenopyrite Chalcopyrite Clay Clinozoisite Copper Covellite Diaspore Epidote
Kaolinite Malachite Mica Molybdenite None Not in a structural group Pyrite Rocksalt Smectite-vermiculite Spinel

19 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	90	87	3419
Anhydrite ()*	Not in a structural group	Ca(SO₄)	90	87	1588
Arsenopyrite ()*	Arsenopyrite	FeAsS	90	87	9052
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	90	87	5509
Bornite ()*	None	Cu₅FeS₄	90	87	5516
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	90	87	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	90	87	3531
Copper ()*	Copper	Cu	90	87	3846
Covellite ()*	Covellite	CuS	90	87	4165
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	90	87	8173
Galena ()*	Rocksalt	PbS	90	87	24243
Goethite ()*	Diaspore	FeO(OH)	90	87	7437
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	90	87	5591
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	90	87	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	90	87	12537
Molybdenite ()*	Molybdenite	MoS₂	90	87	5800
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	90	87	1508
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	90	87	17380
Pyrite ()*	Pyrite	FeS₂	90	87	39462

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-00064	90	87	90–87									Actinolite, Anhydrite, Arsenopyrite, Bornite, Chalcopyrite, Chrysocolla, Copper, Covellite, Epidote, Galena, Kaolinite, Magnetite, Molybdenite, Montmorillonite, Pyrite	Cu	22204	Mazama Mine (Lesley Mine), Mazama, Mazama District, Okanogan Co., Washington, USA	Mazama	Singer et al. (2008)		USGSOFR2008_1155

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...