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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Marcasite from
Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK


08672700017367775612547.jpg
Marcasite, etc.

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
08672700017367775612547.jpg
Marcasite, etc.

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
08924760017361345029881.jpg
Marcasite, etc.

Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
Locality type:Mine
Classification
Species:Marcasite
Formula:FeS2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Hematite1
Quartz1
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Tincroft Mine, Pool, Carn Brea, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:7442
Long-form Identifier:1:3:7442:1
GUID (UUID V4):0
Nearest other occurrences of Marcasite
0.3km (0.2 miles) ⓘCook's Kitchen Mine, Pool, Carn Brea, Cornwall, England, UK
0.5km (0.3 miles) ⓘNew Cook's Kitchen Mine, Pool, Carn Brea, Cornwall, England, UK
0.5km (0.3 miles) ⓘSouth Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
0.9km (0.5 miles) ⓘCarn Brea Mine, Pool, Carn Brea, Cornwall, England, UK
3.2km (2.0 miles) ⓘWheal Whitfield (North Carn Brea Mine; North Tincroft Mine), Robarts Mine (incl. East Wheal Seton; Wheal Maude), Illogan, Cornwall, England, UK
4.9km (3.1 miles) ⓘCathedral Mine, Busveal, St Day, Cornwall, England, UK
7.1km (4.4 miles) ⓘWheal Unity, Gwennap, Cornwall, England, UK
7.8km (4.9 miles) ⓘWheal Concord, East Treskerby Mine, Skinners Bottom, St Agnes, Cornwall, England, UK
8.7km (5.4 miles) ⓘWheal Clifford, United Mines (Gwennap United Mines), Clifford Amalgamated Mines, Gwennap, Cornwall, England, UK
8.8km (5.5 miles) ⓘWheal Friendship, Wheal Andrew, Mount Wellington Mine (Wheal Magpie), Cusgarne, Gwennap, Cornwall, England, UK
References
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
 
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