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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Copiapite from
Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy


Locality type:Mine
Classification
Species:Copiapite
Formula:Fe2+Fe43+(SO4)6(OH)2 · 20H2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Löweite1
Metavoltine1
Pickeringite1
Data
Mineral Data:Click here to view Copiapite data
Locality Data:Click here to view Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
Data Identifiers
Mindat Occurrence Record ID:84180
Long-form Identifier:1:3:84180:5
GUID (UUID V4):0
Nearest other occurrences of Copiapite
17.7km (11.0 miles) ⓘCampiano Mine, Montieri, Grosseto Province, Tuscany, Italy
18.4km (11.4 miles) ⓘBoccheggiano mines, Montieri, Grosseto Province, Tuscany, Italy
24.7km (15.3 miles) ⓘNiccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy
35.9km (22.3 miles) ⓘLa Striscia, Il Castagno, Gambassi Terme, Metropolitan City of Florence, Tuscany, Italy
40.6km (25.2 miles) ⓘGavorrano Mine, Gavorrano, Grosseto Province, Tuscany, Italy
64.9km (40.3 miles) ⓘBuca Fonda quarry, Gabbro, Rosignano Marittimo, Livorno Province, Tuscany, Italy
67.2km (41.8 miles) ⓘPereta Mine, Scansano, Grosseto Province, Tuscany, Italy
68.8km (42.7 miles) ⓘFosso "La Fuliggine", Catabbio, Semproniano, Grosseto Province, Tuscany, Italy
70.4km (43.7 miles) ⓘRogiolo mine, Quercianella, Livorno, Livorno Province, Tuscany, Italy
71.3km (44.3 miles) ⓘCalignaia quarry, Livorno, Livorno Province, Tuscany, Italy
References
Sabelli, Cesare, Brizzi, Giancarlo (1984) Alteration Minerals of the Cetine Mine, Tuscany, Italy. The Mineralogical Record, 15 (1) 27-36
Menchetti, S., Batoni, M., Batacchi, C., Borselli, G., Brogi, A., Ceccantini, L., Fassina, B., Marchesini, M., Rossellini, A. & Ruggieri, G. (2015): Le Cetine di Cotorniano. Miniera e minerali. Associazione Micro-Mineralogica Italiana, Cremona, 354 p.
 
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