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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Ferro-hornblende from
Hard Mine, Ringwood, Passaic County, New Jersey, USA


Locality type:Mine
Classification
Species:Ferro-hornblende
Formula:◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Ferro-hornblende data
Locality Data:Click here to view Hard Mine, Ringwood, Passaic County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:72067
Long-form Identifier:1:3:72067:2
GUID (UUID V4):0
Nearest other occurrences of Ferro-hornblende
0.0km (0.0 miles) ⓘMule Mine, Ringwood, Passaic County, New Jersey, USA
0.0km (0.0 miles) ⓘCannon Mines, Ringwood, Passaic County, New Jersey, USA
1.4km (0.9 miles) ⓘBush Mine, Ringwood, Passaic County, New Jersey, USA
1.9km (1.2 miles) ⓘBlue Mine, Ringwood, Passaic County, New Jersey, USA
5.5km (3.4 miles) ⓘPeters Mine, Ringwood, Passaic County, New Jersey, USA
12.4km (7.7 miles) ⓘWanaque Mines (Wynokie Mines), Riverdale, Morris County, New Jersey, USA
13.6km (8.5 miles) ⓘRyerson de Bow Mine (Bishop Mine; Search Mine), Pompton Station, Riverdale, Morris County, New Jersey, USA
18.7km (11.6 miles) ⓘProspect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
20.1km (12.5 miles) ⓘWild Cat Mine (Kitchell Mine), Copperas Mountain, Rockaway Township, Morris County, New Jersey, USA
20.5km (12.7 miles) ⓘGreen Mines, Wawayanda Mountain, Vernon, Vernon Township, Sussex County, New Jersey, USA
References
NJ State Geol. Ann. Rpt. (1856):184
 
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