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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Rock Crystal from
Mount Tom Spar Quarry, Sumner, Oxford County, Maine, USA


Locality type:Quarry
Classification
Species:Quartz var: Rock Crystal
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Rock Crystal data
Locality Data:Click here to view Mount Tom Spar Quarry, Sumner, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:36142
Long-form Identifier:1:3:36142:4
GUID (UUID V4):0
Nearest other occurrences of Rock Crystal
14.2km (8.8 miles) ⓘDiamond Ledge Locality, Greenwood, Oxford County, Maine, USA
14.5km (9.0 miles) ⓘNoyes Mountain Quarry (Harvard Quarry), Greenwood, Oxford County, Maine, USA
26.3km (16.4 miles) ⓘPhillips Quarry, Minot, Androscoggin County, Maine, USA
30.2km (18.8 miles) ⓘBurnell Hill Feldspar Quarries, Waterford, Oxford County, Maine, USA
31.1km (19.3 miles) ⓘMaine Feldspar Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
37.6km (23.4 miles) ⓘFoster Hill prospect, Lovell, Oxford County, Maine, USA
61.9km (38.5 miles) ⓘHumphreys Ledge quartz crystal locality, Bartlett, Carroll County, New Hampshire, USA
65.5km (40.7 miles) ⓘPound of Tea Island Epidote locality, Freeport, Cumberland County, Maine, USA
References
 
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