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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Diopside from
Forest of Dean Mine, Fort Montgomery, Town of Highlands, Orange County, New York, USA


Locality type:Mine
Classification
Species:Diopside
Formula:CaMgSi2O6
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Magnetite3
Calcite3
Data
Mineral Data:Click here to view Diopside data
Locality Data:Click here to view Forest of Dean Mine, Fort Montgomery, Town of Highlands, Orange County, New York, USA
Data Identifiers
Mindat Occurrence Record ID:79596
Long-form Identifier:1:3:79596:8
GUID (UUID V4):0
Nearest other occurrences of Diopside
3.3km (2.1 miles) ⓘBrooks Hollow Dam, Bear Mountain State Park, Orange County, New York, USA
7.3km (4.5 miles) ⓘCotton Rock, Cold Spring, Town of Philipstown, Putnam County, New York, USA
8.6km (5.3 miles) ⓘWest Point, Orange County, New York, USA
11.0km (6.9 miles) ⓘGreenwood mine (Patterson mine), Town of Tuxedo, Orange County, New York, USA
11.3km (7.0 miles) ⓘPhilipstown, Cold Spring, Town of Philipstown, Putnam County, New York, USA
11.9km (7.4 miles) ⓘSurebridge Mine (Sure-Bridge Mine), Town of Tuxedo, Orange County, New York, USA
12.4km (7.7 miles) ⓘGreenwood Furnace, Arden (Greenwood), Orange County, New York, USA
13.5km (8.4 miles) ⓘHogencamp Mine, Town of Tuxedo, Orange County, New York, USA
13.9km (8.6 miles) ⓘO'Neil Mine, Lake Mombasha, Town of Monroe, Orange County, New York, USA
17.7km (11.0 miles) ⓘHustis Quarry, Town of Philipstown, Putnam County, New York, USA
References
Manchester, James G. (1931) The Minerals of New York City and its Environs. Bulletin of the New York Mineralogical Club Vol. 3 (1). New York Mineralogical Clubp.72
 
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