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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Malachite from
North Hill Mines, Simsbury Mines, East Granby, Hartford County, Connecticut, USA


Locality type:Mine
Classification
Species:Malachite
Formula:Cu2(CO3)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Malachite data
Locality Data:Click here to view North Hill Mines, Simsbury Mines, East Granby, Hartford County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:615185
Long-form Identifier:1:3:615185:0
GUID (UUID V4):0
Nearest other occurrences of Malachite
0.9km (0.6 miles) ⓘWyncairne subdivision, East Granby, Hartford County, Connecticut, USA
0.9km (0.6 miles) ⓘNew-Gate Copper Mine (Old New-Gate Prison), Simsbury Mines, East Granby, Hartford County, Connecticut, USA
1.0km (0.6 miles) ⓘSimsbury Mines, East Granby, Hartford County, Connecticut, USA
2.7km (1.7 miles) ⓘState Route 20 road cut, East Granby, Hartford County, Connecticut, USA
3.6km (2.3 miles) ⓘRoncari Quarry, East Granby, Hartford County, Connecticut, USA
11.2km (7.0 miles) ⓘK-F Quarry (Kelsey-Ferguson Quarry), Suffield, Hartford County, Connecticut, USA
17.2km (10.7 miles) ⓘLane & Son traprock quarries (Lane's Quarry), Westfield, Hampden County, Massachusetts, USA
22.1km (13.7 miles) ⓘHuckleberry Hill, Avon, Hartford County, Connecticut, USA
25.0km (15.5 miles) ⓘHighridge Road, Avon, Hartford County, Connecticut, USA
25.0km (15.5 miles) ⓘTrinity Ridge, Hartford, Hartford County, Connecticut, USA
References
Gray 1982
 
and/or  
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