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
Vitali Mine, Andros, South Aegean, Greece


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 Vitali Mine, Andros, South Aegean, Greece
Data Identifiers
Mindat Occurrence Record ID:571981
Long-form Identifier:1:3:571981:5
GUID (UUID V4):0
Nearest other occurrences of Actinolite
48.8km (30.3 miles) ⓘCape Marmari, Grammata Bay, Syros, Syros-Ermoupoli, South Aegean, Greece
69.5km (43.2 miles) ⓘSclives Mine, Plaka Mines, Plaka, Lavreotiki, East Attica, Attica, Greece
70.5km (43.8 miles) ⓘPlaka Granodiorite Mine, Plaka Mines, Plaka, Lavreotiki, East Attica, Attica, Greece
72.6km (45.1 miles) ⓘHilarion Mine, Kamariza Mines (Kamareza Mines), Agios Konstantinos (Kamariza), Lavreotiki, East Attica, Attica, Greece
83.1km (51.6 miles) ⓘVarnavas, Marathon, East Attica, Attica, Greece
91.9km (57.1 miles) ⓘMegalo Chorio, Serifos Island, Milos, South Aegean, Greece
93.3km (57.9 miles) ⓘMegalo Livadi, Serifos Island, Milos, South Aegean, Greece
References
Reinecke, Thomas (1982) Cymrite and celsian in manganese-rich metamorphic rocks from Andros Island/Greece. Contributions to Mineralogy and Petrology, 79 (3) 333-336 doi:10.1007/bf00371525
 
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