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:
Agnew Meadow Mine (Agnew Meadow Manganese Prospect/deposit; Mammoth Lakes), Olaine Lake, Agnew Meadows, Madera Co., California, USA

mindat Locality ID: 30934
mindat URL: http://www.mindat.org/loc-30934.html

Tectonic Settings:

Total number of sublocalities beneath "Agnew Meadow Mine (Agnew Meadow Manganese Prospect/deposit; Mammoth Lakes), Olaine Lake, Agnew Meadows, Madera Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 37°40'56"N
Longitude: 119°4'58"W
Decimal Degree (lat, lon): 37.682222222222,-119.08277777778

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.

Calcite	Clinozoisite	Corundum	Epidote	Humite	None	Pyrite	Rhodonite	Spinel	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 Fe H Mn Na O S Si V

Elements from minerals reported directly at this locality: Al C Ca Fe H Mn Na O S Si V

Structural Groups for minerals in this locality:
Calcite Clinozoisite Corundum Epidote Humite None Pyrite Rhodonite Spinel Wollastonite

11 IMA Minerals at location:

Bustamite ()*	Calcite ()*	Epidote ()*	Hematite ()*	Magnetite ()*
Manganhumite ()*	Metamunirite ()*	Piemontite ()*	Pyrite ()*	Rhodochrosite ()*
Rhodonite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Bustamite ()*	Wollastonite	Mn₂Ca₂MnCa(Si₃O₉)₂			101
Calcite ()*	Calcite	Ca(CO₃)			27770
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)			8173
Hematite ()*	Corundum	Fe₂O₃			14640
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			14899
Manganhumite ()*	Humite	Mn²⁺₇(SiO₄)₃(OH)₂			14
Metamunirite ()*	None	NaV⁵⁺O₃	0	0	14
Piemontite ()*	Epidote	Ca₂(Al₂Mn³⁺)[Si₂O₇][SiO₄]O(OH)			260
Pyrite ()*	Pyrite	FeS₂			39462
Rhodochrosite ()*	Calcite	Mn(CO₃)			1711
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)			969

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...