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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Actinolite from
Belstone Consols (Mid-Devon Copper Mine), Belstone, West Devon, Devon, England, UK


Locality type:Mine
Classification
Species:Actinolite
Formula:◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Actinolite data
Locality Data:Click here to view Belstone Consols (Mid-Devon Copper Mine), Belstone, West Devon, Devon, England, UK
Data Identifiers
Mindat Occurrence Record ID:85
Long-form Identifier:1:3:85:7
GUID (UUID V4):0
Nearest other occurrences of Actinolite
1.2km (0.7 miles) ⓘIvy Tor Mine, Belstone, West Devon, Devon, England, UK
6.7km (4.2 miles) ⓘMeldon Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
7.1km (4.4 miles) ⓘMeldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
18.7km (11.6 miles) ⓘNorth Mine (East Wheal Friendship), Devon United Mines, Peter Tavy, West Devon, Devon, England, UK
22.3km (13.8 miles) ⓘHaytor Mine, Ilsington, Teignbridge, Devon, England, UK
43.0km (26.7 miles) ⓘLittleham Bay, Budleigh Salterton, East Devon, Devon, England, UK
43.4km (26.9 miles) ⓘCheesewring Quarry, Minions, Linkinhorne, Cornwall, England, UK
47.9km (29.8 miles) ⓘClicker Tor Quarry, Lower Clicker, Menheniot, Cornwall, England, UK
56.5km (35.1 miles) ⓘDelabole Slate Quarry, St Teath, Cornwall, England, UK
63.4km (39.4 miles) ⓘWheal Maudlin (Wheal Mawdlin; Wheal Magdalen), Lostwithiel, Cornwall, England, UK
References
Smyth, W: (1875): Transactions of the Royal Geological Society of Cornwall 9, 38-45
 
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