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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Topaz from
Seal Hole Mine, St Agnes Consols (Polberro Consols), St Agnes, Cornwall, England, UK


Locality type:Mine
Classification
Species:Topaz
Formula:Al2(SiO4)(F,OH)2
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Cassiterite9
Quartz5
Fluorite2
Wolframite Group2
Data
Mineral Data:Click here to view Topaz data
Locality Data:Click here to view Seal Hole Mine, St Agnes Consols (Polberro Consols), St Agnes, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:1069264
Long-form Identifier:1:3:1069264:2
GUID (UUID V4):0
Nearest other occurrences of Topaz
0.2km (0.1 miles) ⓘPell Mine (Great Pell Mine), St Agnes Consols (Polberro Consols), St Agnes, Cornwall, England, UK
0.2km (0.1 miles) ⓘTrevaunance Mine (Wheal Trevaunance), St Agnes Consols (Polberro Consols), St Agnes, Cornwall, England, UK
0.2km (0.1 miles) ⓘWheal Kine (Wheal Kind), St Agnes Consols (Polberro Consols), St Agnes, Cornwall, England, UK
0.4km (0.2 miles) ⓘPolberro Mines, St Agnes Consols (Polberro Consols), St Agnes, Cornwall, England, UK
0.4km (0.2 miles) ⓘNorth Seal Hole Mine, St Agnes Consols (Polberro Consols), St Agnes, Cornwall, England, UK
0.5km (0.3 miles) ⓘBeacon Quarry, St Agnes, Cornwall, England, UK
1.1km (0.7 miles) ⓘWheal Kitty (Kitty and Penhalls United Mine; incl. Goonlaze Mine; Wheal Osborne), St Agnes, Cornwall, England, UK
3.1km (1.9 miles) ⓘHanover Cove (Vugga Hayle), St Agnes, Cornwall, England, UK
3.4km (2.1 miles) ⓘCligga Head, Perranporth, Perranzabuloe, Cornwall, England, UK
5.3km (3.3 miles) ⓘWheal Droskyn, Perran St George and Droskyn Mines, Perranporth, Perranzabuloe, Cornwall, England, UK
References
Foster, Dale (n.d.) Personal communication.
 
and/or  
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