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
Birks Head Mine, Long Marton, Eden, Cumbria, England, UK


02893630017271986615797.jpg
Gypsum

Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
03372590017272019154133.jpg
Gypsum

Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
04041360017272019174583.jpg
Gypsum

Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
05218290017362304727629.jpg
Gypsum

Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
08913650017362304727038.jpg
Gypsum

Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
03924910017362304737803.jpg
Gypsum

Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
07374650017362304732402.jpg
Gypsum

Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
05218290017362304727629.jpg
Gypsum

Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
00336270017271986637190.jpg
Gypsum

Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
03372590017272019154133.jpg
Gypsum

Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
06698150017272019305893.jpg
Gypsum

Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
05218290017362304727629.jpg
Gypsum

Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
Locality type:Mine
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Birks Head Mine, Long Marton, Eden, Cumbria, England, UK
Photo GalleryView Gallery (4 photos)
Data Identifiers
Mindat Occurrence Record ID:16294
Long-form Identifier:1:3:16294:8
GUID (UUID V4):0
Nearest other occurrences of Gypsum
1.3km (0.8 miles) ⓘLongriggs Mine, Long Marton, Eden, Cumbria, England, UK
1.3km (0.8 miles) ⓘStamp Hill Mine, Long Marton, Eden, Cumbria, England, UK
5.3km (3.3 miles) ⓘAcorn Bank Gypsum Mine, Temple Sowerby, Eden, Cumbria, England, UK
15.9km (9.9 miles) ⓘLong Meg Mine, Lazonby, Eden, Cumbria, England, UK
17.7km (11.0 miles) ⓘTynebottom Mine, Garrigill, Alston Moor, Eden, Cumbria, England, UK
20.0km (12.4 miles) ⓘSherry Gill, Shap Rural, Eden, Cumbria, England, UK
20.4km (12.7 miles) ⓘShap Pink Quarry, Shap Rural, Eden, Cumbria, England, UK
20.8km (12.9 miles) ⓘFlusco Quarry, Newbiggin, Greystoke, Eden, Cumbria, England, UK
21.1km (13.1 miles) ⓘSmallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
21.1km (13.1 miles) ⓘCaplecleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
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