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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Calcite from
Ahles Mine (Osmun-Robeson Mine; Pequest), Oxford Furnace, Oxford Township, Warren County, New Jersey, USA


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Ahles Mine (Osmun-Robeson Mine; Pequest), Oxford Furnace, Oxford Township, Warren County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:70994
Long-form Identifier:1:3:70994:3
GUID (UUID V4):0
Nearest other occurrences of Calcite
1.0km (0.6 miles) ⓘEdison Cement Co. Quarry (Tilcon quarry), White Township, Warren County, New Jersey, USA
1.6km (1.0 miles) ⓘOxford Stone Co. Quarry (Tilcon New Jersey Quarry), White Township, Warren County, New Jersey, USA
2.0km (1.3 miles) ⓘOxford, Warren County, New Jersey, USA
12.8km (7.9 miles) ⓘStinson Mine, Independence Township, Jenny Jump Mountain, Warren County, New Jersey, USA
12.8km (8.0 miles) ⓘSteatite Quarry, Harmony Township, Warren County, New Jersey, USA
14.5km (9.0 miles) ⓘDavis Mine, Independence Township, Jenny Jump Mountain, Warren County, New Jersey, USA
14.5km (9.0 miles) ⓘHowell Mine (Howell Farm Mine), Independence Township, Jenny Jump Mountain, Warren County, New Jersey, USA
14.5km (9.0 miles) ⓘDeats Mine (Dietz Mine), Hope Township, Jenny Jump Mountain, Warren County, New Jersey, USA
14.5km (9.0 miles) ⓘSmith's Mine, Hope Township, Jenny Jump Mountain, Warren County, New Jersey, USA
14.5km (9.0 miles) ⓘInshow exploration, Hope Township, Jenny Jump Mountain, Warren County, New Jersey, USA
References
The Iron Mines of NJ (1910), Bayley:211.
William Shirley Bayley (1941) Pre-Cambrian geology and mineral resources of the Delaware Water Gap and Easton quadrangles, New Jersey and Pennsylvania. USGS Bulletin 920
 
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