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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Devilline from
Penberthy Croft Mine, St Hilary, Cornwall, England, UK


07815280017272001016813.jpg
Devilline

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
09666960017272000392720.jpg
Devilline, etc.

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
01026240017272000297573.jpg
Devilline, etc.

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
08399210017272000494521.jpg
Devilline

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
07815280017272001016813.jpg
Devilline

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
09666960017272000392720.jpg
Devilline, etc.

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
01026240017272000297573.jpg
Devilline, etc.

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
08399210017272000494521.jpg
Devilline

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
07815280017272001016813.jpg
Devilline

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
09666960017272000392720.jpg
Devilline, etc.

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
01026240017272000297573.jpg
Devilline, etc.

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
06006120017364297516630.jpg
Devilline

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
Locality type:Mine
Classification
Species:Devilline
Formula:CaCu4(SO4)2(OH)6 · 3H2O
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
SEM-EDS
Confirmation Details:Where Tested and Reference ID: NHM London XRD and SEM
Associated Minerals Based on Photo Data:
Dolomite4
Birnessite3
Chalcoalumite2
Brochantite2
Langite1
Clinochlore1
Erythrite1
Data
Mineral Data:Click here to view Devilline data
Locality Data:Click here to view Penberthy Croft Mine, St Hilary, Cornwall, England, UK
Photo GalleryView Gallery (7 photos)
Data Identifiers
Mindat Occurrence Record ID:4450
Long-form Identifier:1:3:4450:9
GUID (UUID V4):0
Nearest other occurrences of Devilline
0.6km (0.4 miles) ⓘEnnys Wheal Virgin, St Hilary, Cornwall, England, UK
17.6km (10.9 miles) ⓘPendeen Consols, Pendeen, St Just, Cornwall, England, UK
18.1km (11.2 miles) ⓘGeevor Mine, Pendeen, St Just, Cornwall, England, UK
19.1km (11.9 miles) ⓘWheal Hazard, Botallack Mine, Botallack, St Just, Cornwall, England, UK
19.2km (11.9 miles) ⓘWest Wheal Owles (Cargodna Mine), Botallack, St Just, Cornwall, England, UK
24.0km (14.9 miles) ⓘWheal Jane, Kea, Cornwall, England, UK
28.6km (17.8 miles) ⓘPerran St George Mine (Perran Great St George Mine; Great St George Mine; Perran St George United Mine), Perran St George and Droskyn Mines, Perranporth, Perranzabuloe, Cornwall, England, UK
57.6km (35.8 miles) ⓘFowey Consols (incl. Wheal Treasure; Wheal Fortune; Wheal Chance), Tywardreath and Par, Cornwall, England, UK
93.9km (58.3 miles) ⓘHingston Down Quarry, Gunnislake, Calstock, Cornwall, England, UK
References
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
 
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