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


02763990017272057126028.jpg
Quartz, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
06524360017271996525884.jpg
Quartz, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
05707550017271996556670.jpg
Quartz, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
03246190017365349484392.jpg
Quartz, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
02763990017272057126028.jpg
Quartz, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
05427480017365349483620.jpg
Quartz, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
02966420017365349499837.jpg
Quartz, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
03246190017365349484392.jpg
Quartz, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
02763990017272057126028.jpg
Quartz, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
06524360017271996525884.jpg
Quartz, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
05707550017271996556670.jpg
Quartz, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
05566190017365349499664.jpg
Quartz, etc.

Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Fluorite87
Siderite59
Calcite36
Galena27
Pyrite1
Sphalerite1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:44582
Long-form Identifier:1:3:44582:3
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.8km (0.5 miles) ⓘRedburn Mine, Rookhope, Stanhope, County Durham, England, UK
0.9km (0.5 miles) ⓘStotfield Burn Mine, 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
4.1km (2.5 miles) ⓘSikehead Mine, Hunstanworth, 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) ⓘWhiteheaps Mine, Hunstanworth, County Durham, England, UK
4.3km (2.7 miles) ⓘRigg Mine, 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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