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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Pyrolusite from
Monte Valerio, Campiglia Marittima, Livorno Province, Tuscany, Italy


Locality type:Mountain
Classification
Species:Pyrolusite
Formula:Mn4+O2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrolusite data
Locality Data:Click here to view Monte Valerio, Campiglia Marittima, Livorno Province, Tuscany, Italy
Data Identifiers
Mindat Occurrence Record ID:485159
Long-form Identifier:1:3:485159:2
GUID (UUID V4):0
Nearest other occurrences of Pyrolusite
2.5km (1.5 miles) ⓘMontorsi iron ore prospects (Monte Spinosa-North; Monte Spinosa iron deposit), Campiglia Marittima, Livorno Province, Tuscany, Italy
25.2km (15.6 miles) ⓘCape Pero, Cavo, Rio Marina, Rio, Livorno Province, Tuscany, Italy
25.8km (16.0 miles) ⓘFornacelle and Rio Albano Mines, Cavo, Rio Marina, Rio, Livorno Province, Tuscany, Italy
28.5km (17.7 miles) ⓘRio Mine, Rio Marina, Rio, Livorno Province, Tuscany, Italy
34.4km (21.4 miles) ⓘCape Bianco Mine, Porto Azzurro, Livorno Province, Tuscany, Italy
53.8km (33.5 miles) ⓘPoggio Peloso, Civitella Paganico, Grosseto Province, Tuscany, Italy
55.6km (34.5 miles) ⓘVia della Sambuca U-V occurrence, Valle Benedetta, Livorno, Livorno Province, Tuscany, Italy
58.1km (36.1 miles) ⓘBagni di Petriolo (Terme di Petriolo), Monticiano, Siena Province, Tuscany, Italy
65.3km (40.6 miles) ⓘI Poggi, La Befa, Murlo, Siena Province, Tuscany, Italy
66.6km (41.4 miles) ⓘFosso della Chiesa Mine, Pompana, Murlo, Siena Province, Tuscany, Italy
References
G. Dessau, A. Leonardelli, L. Vighi (1975) - Memorie ill. Carta Mineraria d'Italia: V - Toscana, Mem. descr. Carta Geol. Italia, XIV: 85-114 - Servizio Geologico d'Italia, Roma
 
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