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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Corundum from
Pelham asbestos mine, Pelham, Hampshire County, Massachusetts, USA


Locality type:Mine
Classification
Species:Corundum
Formula:Al2O3
Colour:some deep sapphire blue
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Corundum data
Locality Data:Click here to view Pelham asbestos mine, Pelham, Hampshire County, Massachusetts, USA
Data Identifiers
Mindat Occurrence Record ID:92993
Long-form Identifier:1:3:92993:6
GUID (UUID V4):0
Nearest other occurrences of Corundum
43.5km (27.1 miles) ⓘWright Mine, Chester Emery Mines, Chester, Hampden County, Massachusetts, USA
44.4km (27.6 miles) ⓘMelvin Mine, Chester Emery Mines, Chester, Hampden County, Massachusetts, USA
45.0km (27.9 miles) ⓘOld Mine, Chester Emery Mines, Chester, Hampden County, Massachusetts, USA
46.2km (28.7 miles) ⓘChester Emery Mines, Chester, Hampden County, Massachusetts, USA
64.8km (40.3 miles) ⓘWest Thompson Dam, West Thompson, Thompson, Windham County, Connecticut, USA
82.4km (51.2 miles) ⓘState Route 372 construction site, Plainville, Hartford County, Connecticut, USA
96.6km (60.0 miles) ⓘFalls of the Yantic River, Norwich, New London County, Connecticut, USA
References
Emerson, B.K. (1917) Geology of Massachusetts and Rhode Island. Bulletin 597. US Geological Survey doi:10.3133/b597 pp.216-217
Van Gosen, Bradley S. (2005) Reported historic asbestos mines, historic asbestos prospects, and natural asbestos occurrences in the eastern United States. USGS Open-File Report 2005-1189.
 
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