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
Hawks Tor China Clay Pit, Blisland, Cornwall, England, UK


Locality type:Pit
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 Hawks Tor China Clay Pit, Blisland, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:19338
Long-form Identifier:1:3:19338:2
GUID (UUID V4):0
Nearest other occurrences of Amethyst
1.9km (1.2 miles) ⓘShallow Water Mine, Blisland, Cornwall, England, UK
5.8km (3.6 miles) ⓘParson's Park Pit (Parc St Neot Pit), St Neot, Cornwall, England, UK
11.5km (7.1 miles) ⓘPhoenix United Mine, Minions, Linkinhorne, Cornwall, England, UK
14.0km (8.7 miles) ⓘRestormel Royal Iron Mine (Trinity Mine), Lostwithiel, Cornwall, England, UK
21.0km (13.1 miles) ⓘOld Beam Mine (Great Beam Mine), Bugle, Treverbyn, Cornwall, England, UK
21.6km (13.5 miles) ⓘGoonbarrow China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK
22.1km (13.7 miles) ⓘBodelva Pit (Carvear China Clay Works), Bodelva, St Blaise, Cornwall, England, UK
23.1km (14.4 miles) ⓘLower Ninestones China Clay Pit, Carbean, Treverbyn, Cornwall, England, UK
24.3km (15.1 miles) ⓘGreat Longstone China Clay Pit, Longstone Downs, St Mewan, Cornwall, England, UK
26.7km (16.6 miles) ⓘRostowrack China Clay Pit, Hendra Downs, St Dennis, Cornwall, England, UK
References
Rory Donaldson collection
 
and/or  
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