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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Gahnite from
Buckwheat pit, Franklin Mine, Franklin, Sussex County, New Jersey, USA


03115720017369122359785.jpg
Gahnite, etc.

Buckwheat pit, Franklin Mine, Franklin, Sussex County, New Jersey, USA
03115720017369122359785.jpg
Gahnite, etc.

Buckwheat pit, Franklin Mine, Franklin, Sussex County, New Jersey, USA
06032740017369122355841.jpg
Gahnite, etc.

Buckwheat pit, Franklin Mine, Franklin, Sussex County, New Jersey, USA
Locality type:Pit
Classification
Species:Gahnite
Formula:ZnAl2O4
Habit:Rare cubic habit in adjacent tunnel.
Colour:Dark green.
Quality for species:Good crystals or rich for species - important (!)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Calcite3
Willemite2
Microcline2
- var Amazonite2
Fayalite1
- var Roepperite (of Brush)1
Data
Mineral Data:Click here to view Gahnite data
Locality Data:Click here to view Buckwheat pit, Franklin Mine, Franklin, Sussex County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:38591
Long-form Identifier:1:3:38591:0
GUID (UUID V4):0
Nearest other occurrences of Gahnite
0.1km (0.0 miles) ⓘTaylor Road dumps, Franklin Mine, Franklin, Sussex County, New Jersey, USA
0.1km (0.1 miles) ⓘFranklin Mine, Franklin, Sussex County, New Jersey, USA
0.3km (0.2 miles) ⓘTrotter Mine, Franklin Mine, Franklin, Sussex County, New Jersey, USA
1.0km (0.6 miles) ⓘMill site dump, Franklin Mine, Franklin, Sussex County, New Jersey, USA
3.8km (2.3 miles) ⓘSterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA
3.9km (2.4 miles) ⓘPassaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA
References
Dunn, Pete J. (1995) Franklin and Sterling Hill, New Jersey: The world's most magnificent mineral deposits Vol. 3. The Franklin-Ogdensburg Mineralogical Society.p.436
 
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