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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Fluorite from
Sterla Valley, Innerferrera (Calantgil), Ferrera, Viamala Region, Grisons, Switzerland


Locality type:Valley
Classification
Species:Fluorite
Formula:CaF2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Fluorite data
Locality Data:Click here to view Sterla Valley, Innerferrera (Calantgil), Ferrera, Viamala Region, Grisons, Switzerland
Data Identifiers
Mindat Occurrence Record ID:640487
Long-form Identifier:1:3:640487:1
GUID (UUID V4):0
Nearest other occurrences of Fluorite
17.4km (10.8 miles) ⓘTumbler, Soglio, Upper Val Bregaglia, Bregaglia, Maloja Region, Grisons, Switzerland
26.2km (16.3 miles) ⓘAlbigna glacier, Albigna Valley, Upper Val Bregaglia, Bregaglia, Maloja Region, Grisons, Switzerland
27.1km (16.9 miles) ⓘFrunthorn, Lake Zervreila, Vals Valley, Vals, Surselva Region, Grisons, Switzerland
27.7km (17.2 miles) ⓘGneiss quarries, Arvigo, Calanca, Moesa Region, Grisons, Switzerland
32.7km (20.3 miles) ⓘSissone Valley, Chiesa in Valmalenco, Sondrio Province, Lombardy, Italy
35.8km (22.3 miles) ⓘIragna, Lodrino, Riviera, Riviera, Ticino, Switzerland
38.2km (23.7 miles) ⓘLower Scerscen Glacier, Scerscen Valley, Lanzada, Sondrio Province, Lombardy, Italy
40.4km (25.1 miles) ⓘRetico lake, Campo Blenio, Camadra Valley, Blenio Valley, Blenio, Ticino, Switzerland
41.6km (25.9 miles) ⓘLavorgo, Faido, Leventina, Ticino, Switzerland
43.6km (27.1 miles) ⓘPrà Venduletto, Torre di Santa Maria, Sondrio Province, Lombardy, Italy
References
Brugger J. (1996): The Fe, Mn, (V, Sb, As, Be, W) deposits of Val Ferrera (Graubünden, Switzerland). Unpublished PhD Thesis, Univ. Basel. 188 p.
Brugger, J., Gieré, R., Graeser, Stefan, Meisser, Nicolas (1997) The crystal chemistry of roméite. Contributions to Mineralogy and Petrology, 127 (1) 136-146 doi:10.1007/s004100050271
 
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