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
Grasshill Mine, Harwood, Forest and Frith, County Durham, England, UK


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Fluorite36
Sphalerite23
Baryte11
Siderite10
Calcite10
Galena5
Aragonite2
Chalcopyrite2
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Grasshill Mine, Harwood, Forest and Frith, County Durham, England, UK
Data Identifiers
Mindat Occurrence Record ID:224421
Long-form Identifier:1:3:224421:1
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.8km (0.5 miles) ⓘAshgillhead Mine, Harwood, Forest and Frith, County Durham, England, UK
1.4km (0.9 miles) ⓘWillyhole Mine, Harwood, Forest and Frith, County Durham, England, UK
2.1km (1.3 miles) ⓘLangtae Head Mine (Longty Head Mine), Ireshope Moor, Stanhope, County Durham, England, UK
3.7km (2.3 miles) ⓘGreenhurth Mine, Forest and Frith, County Durham, England, UK
5.3km (3.3 miles) ⓘWindy Brow Vein, Alston Moor, Eden, Cumbria, England, UK
5.4km (3.3 miles) ⓘLangdon Beck Mine, Forest and Frith, County Durham, England, UK
5.8km (3.6 miles) ⓘCarricks Mine, Ireshopeburn, Stanhope, County Durham, England, UK
6.0km (3.7 miles) ⓘTynehead Mine, Garrigill, Alston Moor, Eden, Cumbria, England, UK
6.1km (3.8 miles) ⓘCalvert Mine, Alston Moor, Eden, Cumbria, England, UK
6.5km (4.0 miles) ⓘBarbary Mine, Ireshopeburn, Stanhope, County Durham, England, UK
References
 
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