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
Pound of Tea Island Epidote locality, Freeport, Cumberland County, Maine, USA


Locality type:Outcrop
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 Pound of Tea Island Epidote locality, Freeport, Cumberland County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:930277
Long-form Identifier:1:3:930277:8
GUID (UUID V4):0
Nearest other occurrences of Rock Crystal
34.4km (21.4 miles) ⓘMaine Feldspar Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
39.2km (24.4 miles) ⓘPhillips Quarry, Minot, Androscoggin County, Maine, USA
65.5km (40.7 miles) ⓘMount Tom Spar Quarry, Sumner, Oxford County, Maine, USA
68.6km (42.6 miles) ⓘDiamond Ledge Locality, Greenwood, Oxford County, Maine, USA
68.6km (42.6 miles) ⓘNoyes Mountain Quarry (Harvard Quarry), Greenwood, Oxford County, Maine, USA
68.8km (42.7 miles) ⓘBurnell Hill Feldspar Quarries, Waterford, Oxford County, Maine, USA
72.4km (45.0 miles) ⓘFoster Hill prospect, Lovell, Oxford County, Maine, USA
90.2km (56.1 miles) ⓘHumphreys Ledge quartz crystal locality, Bartlett, Carroll County, New Hampshire, USA
References
Zodac, P. (1950) Pound of Tea Island, Maine. Rocks & Minerals 25:136-138
 
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