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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Native Gold from
Castleside Smelting Mill slag locality, Healeyfield, County Durham, England, UK


05793780017367086062412.jpg
Native Gold, etc.

Castleside Smelting Mill slag locality, Healeyfield, County Durham, England, UK
05793780017367086062412.jpg
Native Gold, etc.

Castleside Smelting Mill slag locality, Healeyfield, County Durham, England, UK
08552880017364273921133.jpg
Native Gold, etc.

Castleside Smelting Mill slag locality, Healeyfield, County Durham, England, UK
Locality type:Slag Locality
Classification
Species:Native Gold
Formula:Au
Formation:Post-mining/Anthropogenic
Confirmation
Validity:Unconfirmed/Questioned
Associated Minerals Based on Photo Data:
Cuprite1
Data
Mineral Data:Click here to view Native Gold data
Locality Data:Click here to view Castleside Smelting Mill slag locality, Healeyfield, County Durham, England, UK
Data Identifiers
Mindat Occurrence Record ID:970590
Long-form Identifier:1:3:970590:6
GUID (UUID V4):0
Nearest other occurrences of Native Gold
76.6km (47.6 miles) ⓘGrains Gill, Mungrisdale, Eden, Cumbria, England, UK
76.7km (47.7 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
77.2km (48.0 miles) ⓘHartsop Hall Mine, Hartsop, Patterdale, Eden, Cumbria, England, UK
77.6km (48.2 miles) ⓘIngray Gill, Caldbeck, Allerdale, Cumbria, England, UK
78.2km (48.6 miles) ⓘTodd Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
78.2km (48.6 miles) ⓘMexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
78.5km (48.8 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
78.8km (49.0 miles) ⓘSwinburn Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
79.1km (49.2 miles) ⓘRed Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
79.2km (49.2 miles) ⓘWanthwaite Mine, St. John's Castlerigg and Wythburn, Allerdale, Cumbria, England, UK
References
Norman Wilson collection
 
and/or  
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