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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Calcite from
Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK


07808530017272056248178.jpg
Calcite, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
04931000017271996342308.jpg
Calcite

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
08824900017271996364195.jpg
Calcite

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
07967980017271996351848.jpg
Calcite, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
07808530017272056248178.jpg
Calcite, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
05743560017365260839977.jpg
Calcite

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
08824900017271996364195.jpg
Calcite

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
00981560017365260845353.jpg
Calcite, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
07808530017272056248178.jpg
Calcite, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
04931000017271996342308.jpg
Calcite

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
08824900017271996364195.jpg
Calcite

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
07967980017271996351848.jpg
Calcite, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Fluorite55
Siderite49
Quartz36
Galena12
Chalcopyrite1
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
Photo GalleryView Gallery (9 photos)
Data Identifiers
Mindat Occurrence Record ID:44585
Long-form Identifier:1:3:44585:0
GUID (UUID V4):0
Nearest other occurrences of Calcite
0.8km (0.5 miles) ⓘRedburn Mine, Rookhope, Stanhope, County Durham, England, UK
3.4km (2.1 miles) ⓘWolfcleugh Mine (Thorney Slitts), Rookhope, Stanhope, County Durham, England, UK
3.8km (2.4 miles) ⓘHeights Quarry, Westgate, Stanhope, County Durham, England, UK
3.9km (2.4 miles) ⓘHeights Mine, Westgate, Stanhope, County Durham, England, UK
4.1km (2.5 miles) ⓘNorth Groverake Quarry, Rookhope, Stanhope, County Durham, England, UK
4.2km (2.6 miles) ⓘMiddlehope Shield Mine, Westgate, Stanhope, County Durham, England, UK
4.2km (2.6 miles) ⓘPark Burn Opencut, Westgate, Stanhope, County Durham, England, UK
4.3km (2.7 miles) ⓘRigg Mine, Westgate, Stanhope, County Durham, England, UK
4.4km (2.7 miles) ⓘGroverake Mine, Rookhope, Stanhope, County Durham, England, UK
4.4km (2.7 miles) ⓘWest Rigg Quarry, Westgate, Stanhope, County Durham, England, UK
References
Dunham, K.C. (1990) Geology of the Northern Pennine Orefield, Volume 1, Tyne to Stainmore. 2nd edition, British Geological Survey.
 
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