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Corundum from
Rock Creek Sapphire (American Sapphire Gem Mine; Gem Mountain Mine; Anaconda-Sapphire Gulches; Chaussee Sapphire Corp. Mine; American Gem Corp.), Rock Creek Mining District, Granite County, Montana, USA


Classification
Species:Corundum
Formula:Al2O3
Colour:Yellow (oriental topaz), pale green and blue, pink
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Corundum data
Locality Data:Click here to view Rock Creek Sapphire (American Sapphire Gem Mine; Gem Mountain Mine; Anaconda-Sapphire Gulches; Chaussee Sapphire Corp. Mine; American Gem Corp.), Rock Creek Mining District, Granite County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:992736
Long-form Identifier:1:3:992736:0
GUID (UUID V4):0
Nearest other occurrences of Corundum
2.1km (1.3 miles) ⓘGem Mountain Sapphire Mine (American Sapphire Gem Mine; Chaussee Sapphire Mine), Rock Creek Mining District, Granite County, Montana, USA
7.3km (4.5 miles) ⓘQuartz Creek Deposit, Sapphire Mountains Area, Granite County, Montana, USA
74.5km (46.3 miles) ⓘDry Cottonwood placer, Dry Cottonwood Creek, Orofino Mining District, Deer Lodge County, Montana, USA
87.3km (54.3 miles) ⓘSteward Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA
References
USGS Bull 269
 
and/or  
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