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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Arsenopyrite from
Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK


07830170017690753642984.jpg
Arsenopyrite

Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
04554930017271998442813.jpg
Arsenopyrite, etc.

Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
08696910017271998451650.jpg
Arsenopyrite

Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
04299640017271998474999.jpg
Arsenopyrite, etc.

Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
02130550017690044437161.jpg
Arsenopyrite

Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
02263730017364408119959.jpg
Arsenopyrite, etc.

Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
04272040017364408119080.jpg
Arsenopyrite

Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
07759560017364408116115.jpg
Arsenopyrite, etc.

Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
02053220017690753655802.jpg
Arsenopyrite

Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
04554930017271998442813.jpg
Arsenopyrite, etc.

Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
08696910017271998451650.jpg
Arsenopyrite

Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
02050230017364408124467.jpg
Arsenopyrite, etc.

Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
Locality type:Mine
Classification
Species:Arsenopyrite
Formula:FeAsS
Comments:Heated in a closed tube this gives copious sulphur fumes, sufficient to condense and form liquid drops. The arsenic given off is consequently black (tested Oct 2004)
Habit:mostly massive (powdery) with some cubes
Colour:dull grey
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Very common
Confirmation
Validity:Confirmed
Confirmation Methods:Wet Chemical
Associated Minerals Based on Photo Data:
Siderite2
Quartz2
Pyrite1
Chalcopyrite1
Data
Mineral Data:Click here to view Arsenopyrite data
Locality Data:Click here to view Virtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
Photo GalleryView Gallery (8 photos)
Data Identifiers
Mindat Occurrence Record ID:1003
Long-form Identifier:1:3:1003:0
GUID (UUID V4):0
Nearest other occurrences of Arsenopyrite
0.3km (0.2 miles) ⓘLittle Duke Mine (North Tavy Mine), Gulworthy, West Devon, Devon, England, UK
0.9km (0.6 miles) ⓘLady Bertha Mine, Buckland Monachorum, West Devon, Devon, England, UK
1.1km (0.7 miles) ⓘTavy Consols, Gulworthy, West Devon, Devon, England, UK
1.6km (1.0 miles) ⓘSortridge and Bedford Mine (Westdown Mine; West Down Mine), Whitchurch, West Devon, Devon, England, UK
1.6km (1.0 miles) ⓘBedford Consols, Gulworthy, West Devon, Devon, England, UK
2.0km (1.2 miles) ⓘGeorge and Charlotte Mine, Devon and Cornwall United Mines, Gulworthy, West Devon, Devon, England, UK
2.3km (1.4 miles) ⓘGawton Mine, Gulworthy, West Devon, Devon, England, UK
2.4km (1.5 miles) ⓘHarewood Consols, Harewood, Calstock, Cornwall, England, UK
2.7km (1.7 miles) ⓘEast Wheal Russell, Gulworthy, West Devon, Devon, England, UK
2.8km (1.7 miles) ⓘCrowndale Mine, Tavistock, West Devon, Devon, England, UK
References
Embrey, Peter G., Symes, Robert F. (1987) Minerals of Cornwall and Devon. British Museum (Natural History) and the Mineralogical Record, Inc., London and Tucson, AZ.
 
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