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Piemontite from
Agnew Meadow Mine (Agnew Meadow Manganese prospect/deposit; Mammoth Lakes), Olaine Lake, Agnew Meadows, Madera County, California, USA


Locality type:Mine
Classification
Species:Piemontite
Formula:(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Piemontite data
Locality Data:Click here to view Agnew Meadow Mine (Agnew Meadow Manganese prospect/deposit; Mammoth Lakes), Olaine Lake, Agnew Meadows, Madera County, California, USA
Data Identifiers
Mindat Occurrence Record ID:159559
Long-form Identifier:1:3:159559:8
GUID (UUID V4):0
Nearest other occurrences of Piemontite
4.2km (2.6 miles) ⓘUnnamed Mn occurrence (2), Shadow Lake, Minarets Mining District (Mountain Mining District; Raymond Mining District; Minaret Mining District), Ritter Range, Madera County, California, USA
4.5km (2.8 miles) ⓘShadow Lake, Minarets Mining District (Mountain Mining District; Raymond Mining District; Minaret Mining District), Ritter Range, Madera County, California, USA
4.7km (2.9 miles) ⓘUnnamed Mn-Asbestos-Zeolite occurrence (1), Shadow Lake, Minarets Mining District (Mountain Mining District; Raymond Mining District; Minaret Mining District), Ritter Range, Madera County, California, USA
References
Trask, Parker Davies (1950) Geologic description of the manganese deposits of California. California Division of Mines Bulletin 152, 378 pp.: 103
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
 
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