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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Amethyst from
Blackford Hill Quarry, City of Edinburgh, Scotland, UK


Locality type:Quarry
Classification
Species:Quartz var: Amethyst
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Amethyst data
Locality Data:Click here to view Blackford Hill Quarry, City of Edinburgh, Scotland, UK
Data Identifiers
Mindat Occurrence Record ID:504
Long-form Identifier:1:3:504:1
GUID (UUID V4):0
Nearest other occurrences of Amethyst
3.0km (1.9 miles) ⓘCraiglockhart, City of Edinburgh, Scotland, UK
6.7km (4.2 miles) ⓘCorstorphine Hill, City of Edinburgh, Scotland, UK
15.3km (9.5 miles) ⓘSouth Queensferry, City of Edinburgh, Scotland, UK
15.7km (9.8 miles) ⓘBurnt-Island, Fife, Scotland, UK
15.9km (9.9 miles) ⓘPettycur, Fife, Scotland, UK
32.9km (20.5 miles) ⓘNorth Berwick, East Lothian, Scotland, UK
41.6km (25.9 miles) ⓘWilkiehaugh, Scottish Borders, Scotland, UK
43.8km (27.2 miles) ⓘBinn Hill, Glenfarg, Perth and Kinross, Scotland, UK
45.6km (28.3 miles) ⓘAlva Silver Mine, Silver Glen, Alva, Clackmannanshire, Scotland, UK
48.0km (29.8 miles) ⓘNewburgh, Fife, Scotland, UK
References
 
and/or  
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