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
Botro ai Marmi, Campiglia Marittima, Livorno Province, Tuscany, Italy


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 Botro ai Marmi, Campiglia Marittima, Livorno Province, Tuscany, Italy
Data Identifiers
Mindat Occurrence Record ID:830107
Long-form Identifier:1:3:830107:9
GUID (UUID V4):0
Localities for Actinolite in this Region
Montorsi Mine, Botro ai Marmi, Campiglia Marittima, Livorno Province, Tuscany, Italy
Nearest other occurrences of Actinolite
1.3km (0.8 miles) ⓘMontorsi Mine, Botro ai Marmi, Campiglia Marittima, Livorno Province, Tuscany, Italy
3.0km (1.9 miles) ⓘTemperino Mine, Campiglia Marittima, Livorno Province, Tuscany, Italy
29.6km (18.4 miles) ⓘMicciano, Pomarance, Pisa Province, Tuscany, Italy
31.6km (19.7 miles) ⓘPorticciolo, Rio Marina, Rio, Livorno Province, Tuscany, Italy
32.2km (20.0 miles) ⓘCretaio, Prata, Massa Marittima, Grosseto Province, Tuscany, Italy
35.0km (21.7 miles) ⓘTerranera Mine, Porto Azzurro, Livorno Province, Tuscany, Italy
38.6km (24.0 miles) ⓘSassi Neri mine, Capoliveri, Livorno Province, Tuscany, Italy
41.9km (26.0 miles) ⓘLe Spianate, Castiglioncello, Rosignano Marittimo, Livorno Province, Tuscany, Italy
50.1km (31.1 miles) ⓘPoggio Ginepraia, Rosignano Marittimo, Livorno Province, Tuscany, Italy
82.0km (50.9 miles) ⓘCala Grande, Monte Argentario, Grosseto Province, Tuscany, Italy
References
Biagioni, C., Orlandi, P., Gini, C., Bargellini, C., Gamucci, C., Marinai, V., Nannoni, R. (2013). Botro ai Marmi. I minerali delle miniere Maffei e Montorsi. Rivista Mineralogica Italiana, 1/2013, 63-83.
 
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