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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Ankerite from
Greystone Quarry, Lezant, Cornwall, England, UK


07747600017271948559021.jpg
Manganese-bearing Ankerite

Greystone Quarry, Lezant, Cornwall, England, UK
01059800017368636149487.jpg
Ankerite, etc.

Greystone Quarry, Lezant, Cornwall, England, UK
08791360017370186191301.jpg
Ankerite, etc.

Greystone Quarry, Lezant, Cornwall, England, UK
01793900017363280255222.jpg
Manganese-bearing Ankerite

Greystone Quarry, Lezant, Cornwall, England, UK
07747600017271948559021.jpg
Manganese-bearing Ankerite

Greystone Quarry, Lezant, Cornwall, England, UK
02709950017365430476555.jpg
Ankerite, etc.

Greystone Quarry, Lezant, Cornwall, England, UK
06511690017365362549419.jpg
Ankerite, etc.

Greystone Quarry, Lezant, Cornwall, England, UK
01793900017363280255222.jpg
Manganese-bearing Ankerite

Greystone Quarry, Lezant, Cornwall, England, UK
07747600017271948559021.jpg
Manganese-bearing Ankerite

Greystone Quarry, Lezant, Cornwall, England, UK
05973320017368636143681.jpg
Ankerite, etc.

Greystone Quarry, Lezant, Cornwall, England, UK
05137400017370186209150.jpg
Ankerite, etc.

Greystone Quarry, Lezant, Cornwall, England, UK
01793900017363280255222.jpg
Manganese-bearing Ankerite

Greystone Quarry, Lezant, Cornwall, England, UK
Locality type:Quarry
Classification
Species:Ankerite
Formula:Ca(Fe2+,Mg)(CO3)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz2
Chalcopyrite1
Data
Mineral Data:Click here to view Ankerite data
Locality Data:Click here to view Greystone Quarry, Lezant, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:758
Long-form Identifier:1:3:758:0
GUID (UUID V4):0
Nearest other occurrences of Ankerite
3.9km (2.4 miles) ⓘTrebullet Mine, Lezant, Cornwall, England, UK
9.2km (5.7 miles) ⓘTolpetherwin Mine, South Petherwin, Launceston, Cornwall, England, UK
25.5km (15.9 miles) ⓘHerodsfoot Mine (North Herodsfoot Mine), Lanreath, Cornwall, England, UK
26.5km (16.5 miles) ⓘMillook Beach, Poundstock, Cornwall, England, UK
30.7km (19.1 miles) ⓘOld Treburgett Mine, St Teath, Cornwall, England, UK
31.5km (19.5 miles) ⓘPengenna Mine, St Kew, Cornwall, England, UK
32.3km (20.1 miles) ⓘTregardock Mine (Tregarget Mine), Treligga, St Teath, Cornwall, England, UK
33.5km (20.8 miles) ⓘBarrett 's Zawn, St Teath, Cornwall, England, UK
34.0km (21.1 miles) ⓘBounds Cliff, St Endellion, Cornwall, England, UK
34.3km (21.3 miles) ⓘTreore Mine, St Endellion, Cornwall, England, UK
References
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
Weiß, Stefan; Hooper, Jeremy; Elton, Nick; Green, David I. (2001) Seltene Mineralien aus dem Greystone Quarry, Cornwall/GB [Rare minerals from the Greystone Quarry, Cornwall/UK]. Lapis, 26 (4). 19-33; 50
 
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