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
Winslow Tin mine, Winslow, Kennebec County, Maine, USA


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 Winslow Tin mine, Winslow, Kennebec County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:42460
Long-form Identifier:1:3:42460:8
GUID (UUID V4):0
Nearest other occurrences of Calcite
46.7km (29.0 miles) ⓘPaper Mill Excavation, Jay, Franklin County, Maine, USA
54.3km (33.8 miles) ⓘStarrett Quarries, Warren, Knox County, Maine, USA
61.5km (38.2 miles) ⓘRockland-Thomaston "Limestone" quarries, Rockland, Knox County, Maine, USA
61.5km (38.2 miles) ⓘOld County Road locality, Thomaston, Knox County, Maine, USA
61.6km (38.3 miles) ⓘNellie Ulmer Marble Quarry, Thomaston, Knox County, Maine, USA
61.9km (38.5 miles) ⓘDragon Cement Quarry, Thomaston, Knox County, Maine, USA
63.1km (39.2 miles) ⓘRobinson Mountain, Lewiston, Androscoggin County, Maine, USA
65.7km (40.8 miles) ⓘCity quarry, Lewiston, Androscoggin County, Maine, USA
66.4km (41.3 miles) ⓘAlfred Plourde Parkway Quarry, Lewiston, Androscoggin County, Maine, USA
66.7km (41.4 miles) ⓘBennett Quarry, Buckfield, Oxford County, Maine, USA
References
 
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