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
Catburn, Largs, North Ayrshire, Scotland, UK


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 Catburn, Largs, North Ayrshire, Scotland, UK
Data Identifiers
Mindat Occurrence Record ID:490
Long-form Identifier:1:3:490:9
GUID (UUID V4):0
Nearest other occurrences of Amethyst
5.5km (3.4 miles) ⓘLinthills and Lairdshide, Renfrewshire, Scotland, UK
5.8km (3.6 miles) ⓘKaim Hill, North Ayrshire, Scotland, UK
9.1km (5.7 miles) ⓘLochwinnock, Renfrewshire, Scotland, UK
32.4km (20.1 miles) ⓘLinn Park (Cathcart Castle), Glasgow City, Scotland, UK
68.1km (42.3 miles) ⓘKillellan hill, Killellan, Campbeltown, Kintyre, Argyll and Bute, Scotland, UK
74.6km (46.3 miles) ⓘSouthend, Campbeltown, Kintyre, Argyll and Bute, Scotland, UK
75.0km (46.6 miles) ⓘAlva Silver Mine, Silver Glen, Alva, Clackmannanshire, Scotland, UK
88.9km (55.2 miles) ⓘSouth Queensferry, City of Edinburgh, Scotland, UK
95.3km (59.2 miles) ⓘCorstorphine Hill, City of Edinburgh, Scotland, UK
97.2km (60.4 miles) ⓘCraiglockhart, City of Edinburgh, Scotland, UK
References
 
and/or  
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