Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Chalcedony from
Golden Fleece Mine, Lake City, Lake City Mining District, Hinsdale County, Colorado, USA


Locality type:Mine
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Golden Fleece Mine, Lake City, Lake City Mining District, Hinsdale County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:599704
Long-form Identifier:1:3:599704:6
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
7.6km (4.7 miles) ⓘHidden Treasure Mine, Lake City, Lake City Mining District, Hinsdale County, Colorado, USA
7.8km (4.9 miles) ⓘOulay Mine, Lake City, Lake City Mining District, Hinsdale County, Colorado, USA
17.1km (10.6 miles) ⓘUncompahgre Peak, Hinsdale County, Colorado, USA
33.9km (21.1 miles) ⓘLast Chance Mine, Amethyst vein, Creede Mining District, Mineral County, Colorado, USA
34.0km (21.1 miles) ⓘAmethyst Mine, Amethyst vein, Creede Mining District, Mineral County, Colorado, USA
34.6km (21.5 miles) ⓘBulldog Mountain Mine, Creede Mining District, Mineral County, Colorado, USA
34.6km (21.5 miles) ⓘBachelor Mine, Amethyst vein, Creede Mining District, Mineral County, Colorado, USA
35.0km (21.7 miles) ⓘCommodore Mine, Amethyst vein, Creede Mining District, Mineral County, Colorado, USA
38.1km (23.7 miles) ⓘLittle Dora Mine, San Juan County, Colorado, USA
43.4km (26.9 miles) ⓘTrout Creek Sulfur Deposit, Mineral County, Colorado, USA
References
Econ Geol (1985) 80:410-417
 
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