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Sapphire from
Missouri River gravel bar, Helena area, Helena Mining District (Spring Hill Mining District), Lewis and Clark County, Montana, USA


03808090017272060227313.jpg
Sapphire

Missouri River gravel bar, Helena area, Helena Mining District, Lewis and Clark County, Montana, USA
03808090017272060227313.jpg
Sapphire

Missouri River gravel bar, Helena area, Helena Mining District, Lewis and Clark County, Montana, USA
03808090017272060227313.jpg
Sapphire

Missouri River gravel bar, Helena area, Helena Mining District, Lewis and Clark County, Montana, USA
Locality type:Beach
Classification
Species:Corundum var: Sapphire
Formula:Al2O3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sapphire data
Locality Data:Click here to view Missouri River gravel bar, Helena area, Helena Mining District (Spring Hill Mining District), Lewis and Clark County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:154802
Long-form Identifier:1:3:154802:0
GUID (UUID V4):0
Nearest other occurrences of Sapphire
1.9km (1.2 miles) ⓘSpokane Bar (American Gem Corp.; Spokane Bar Sapphire Mine), Lewis and Clark County, Montana, USA
6.9km (4.3 miles) ⓘEldorado Bar, East Helena, Lewis and Clark County, Montana, USA
83.7km (52.0 miles) ⓘDry Cottonwood placer, Dry Cottonwood Creek, Orofino Mining District, Deer Lodge County, Montana, USA
92.7km (57.6 miles) ⓘSteward Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA
References
Betts, John (n.d.) John Betts website listing.
 
and/or  
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