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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Calcite from
Emmons mine, McIntyre Township, Thunder Bay District, Ontario, Canada


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Emmons mine, McIntyre Township, Thunder Bay District, Ontario, Canada
Data Identifiers
Mindat Occurrence Record ID:655487
Long-form Identifier:1:3:655487:3
GUID (UUID V4):0
Nearest other occurrences of Calcite
2.6km (1.6 miles) ⓘOsmun Mine, McIntyre Township, Thunder Bay District, Ontario, Canada
5.9km (3.7 miles) ⓘShuniah Mine (Duncan), McIntyre Township, Thunder Bay District, Ontario, Canada
9.8km (6.1 miles) ⓘThunder Bay Mine, MacGregor Township, Thunder Bay District, Ontario, Canada
10.4km (6.4 miles) ⓘMcNamara quarry, MacGregor Township, Thunder Bay District, Ontario, Canada
11.0km (6.8 miles) ⓘNeepatyre Mine, Neebing Township, Thunder Bay District, Ontario, Canada
20.0km (12.4 miles) ⓘParesseux Rapids occurrence, Paipoonge Township, Thunder Bay District, Ontario, Canada
21.4km (13.3 miles) ⓘParsons Mine (Lily of the Valley Mine), Paipoonge Township, Thunder Bay District, Ontario, Canada
22.3km (13.9 miles) ⓘFederal Mine (Copeland's vein), Paipoonge Township, Thunder Bay District, Ontario, Canada
23.3km (14.5 miles) ⓘSilver Harbour Mine (Beck Mine; Three A Mine; 3 A), MacGregor Township, Thunder Bay District, Ontario, Canada
26.1km (16.2 miles) ⓘBig Bear Mine, Paipoonge Township, Thunder Bay District, Ontario, Canada
References
Vos, M. A., 1976, Amethyst Deposits of Ontario, Ontario Division of Mines, pp. 99..
 
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