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:
Pyramid Prospect, Alaska Peninsula District, Aleutians East Borough, Alaska, USA

Oldest recorded age at locality: 6.4
Youngest recorded age at locality: 6.4

mindat Locality ID: 199526
mindat URL: http://www.mindat.org/loc-199526.html

Tectonic Settings:

Total number of sublocalities beneath "Pyramid Prospect, Alaska Peninsula District, Aleutians East Borough, Alaska, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 55°37'47"N
Longitude: 160°40'12"W
Decimal Degree (lat, lon): 55.629722222222,-160.67

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	Calcite	Chalcopyrite	Clay	Clinozoisite	Corundum	Covellite	Diaspore	Epidote	Fluorite
Kaolinite	Mica	Molybdenite	None	Not in a structural group	Pyrite	Quartz	Rutile	Spinel

Chalcocite ()*	Chalcopyrite ()*	Chrysocolla ()*	Covellite ()*	Cuprite ()*
Epidote ()*	Fluorite ()*	Goethite ()*	Hematite ()*	Kaolinite ()*
Magnetite ()*	Molybdenite ()*	Muscovite ()*	Pyrite ()*	Quartz ()*
Rhodochrosite ()*	Rutile ()*

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 Mn Mo O S Si Ti

Elements from minerals reported directly at this locality: Al C Ca Cu F Fe H K Mn Mo O S Si Ti

Structural Groups for minerals in this locality:
Allophane Calcite Chalcopyrite Clay Clinozoisite Corundum Covellite Diaspore Epidote Fluorite
Kaolinite Mica Molybdenite None Not in a structural group Pyrite Quartz Rutile Spinel

17 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Chalcocite ()*	None	Cu₂S	6.4	6.4	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	6.4	6.4	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	6.4	6.4	3531
Covellite ()*	Covellite	CuS	6.4	6.4	4165
Cuprite ()*	Not in a structural group	Cu₂O	6.4	6.4	2970
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	6.4	6.4	8173
Fluorite ()*	Fluorite	CaF₂	6.4	6.4	9617
Goethite ()*	Diaspore	FeO(OH)	6.4	6.4	7437
Hematite ()*	Corundum	Fe₂O₃	6.4	6.4	14640
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	6.4	6.4	5591
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	6.4	6.4	14899
Molybdenite ()*	Molybdenite	MoS₂	6.4	6.4	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	6.4	6.4	17380
Pyrite ()*	Pyrite	FeS₂	6.4	6.4	39462
Quartz ()*	Quartz	SiO₂	6.4	6.4	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)	6.4	6.4	1711
Rutile ()*	Rutile	TiO₂	6.4	6.4	5614

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-00241	6.4	6.4	6.4									Chalcocite, Chalcopyrite, Chrysocolla, Covellite, Cuprite, Epidote, Fluorite, Hematite, Kaolinite, Magnetite, Molybdenite, Pyrite, Rhodochrosite, Rutile	Cu	199526	Pyramid Prospect, Alaska Peninsula District, Aleutians East Borough, Alaska, USA	Pyramid	Singer et al. (2008)		USGSOFR2008_1155

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...