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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Amphibole Supergroup from
George Mine (Logan Mine), Ironia (Calais), Randolph Township, Morris County, New Jersey, USA


Locality type:Mine
Classification
Species:'Amphibole Supergroup' (not an IMA approved species)
Formula:AB2C5(T8O22)W2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Amphibole Supergroup data
Locality Data:Click here to view George Mine (Logan Mine), Ironia (Calais), Randolph Township, Morris County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:79734
Long-form Identifier:1:3:79734:6
GUID (UUID V4):0
Nearest other occurrences of Amphibole Supergroup
3.8km (2.3 miles) ⓘCanfield Phosphate Mine, Mine Hill, Morris County, New Jersey, USA
4.7km (2.9 miles) ⓘBaker Mines, Mine Hill, Morris County, New Jersey, USA
8.0km (5.0 miles) ⓘMariot's Mine, Shippenport, Roxbury Township, Morris County, New Jersey, USA
8.9km (5.5 miles) ⓘLake View Mine, Lake Hopatcong, Roxbury Township, Morris County, New Jersey, USA
11.3km (7.0 miles) ⓘHacklebarney Mine, Hacklebarney, Chester Township, Morris County, New Jersey, USA
12.3km (7.6 miles) ⓘMount Hope Mines (Mt Hope Mines), Mount Hope, Rockaway Township, Morris County, New Jersey, USA
24.9km (15.5 miles) ⓘLime Crest Quarry, Sparta Township, Sussex County, New Jersey, USA
25.5km (15.8 miles) ⓘGhost Lake area, Independence Township, Jenny Jump Mountain, Warren County, New Jersey, USA
25.5km (15.9 miles) ⓘDavis Mine, Independence Township, Jenny Jump Mountain, Warren County, New Jersey, USA
30.8km (19.2 miles) ⓘBuckwheat dump mineral collecting site, Franklin Mine, Franklin, Sussex County, New Jersey, 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.79
 
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