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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Gypsum from
Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand


03858360017363035745862.jpg
Gypsum, etc.

Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
09505940017272038739891.jpg
Gypsum

Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
00053600017272038755712.jpg
Gypsum

Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
09040080017272039228956.jpg
Gypsum, etc.

Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
01371670017363035724700.jpg
Gypsum, etc.

Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
04807920017367959952154.jpg
Gypsum

Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
00898880017367960079357.jpg
Gypsum

Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
02032300017367960176368.jpg
Gypsum, etc.

Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
03858360017363035745862.jpg
Gypsum, etc.

Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
09505940017272038739891.jpg
Gypsum

Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
00053600017272038755712.jpg
Gypsum

Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
09040080017272039228956.jpg
Gypsum, etc.

Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
Locality type:Quarry
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Calcite2
Pyrite1
Clinoptilolite-Ca1
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Whitianga Quarry, Whitianga, Coromandel peninsula, Thames-Coromandel District, Waikato Region, New Zealand
Photo GalleryView Gallery (5 photos)
Data Identifiers
Mindat Occurrence Record ID:385198
Long-form Identifier:1:3:385198:2
GUID (UUID V4):0
References
Collection of Rod Martin, paper in prep.
 
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