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Grattarolaite
Type Locality
Castelnuovo Mine, Santa Barbara lignite District, Cavriglia, Valdarno (Val d'Arno), Arezzo Province, Tuscany, Italy
Mineral Data
Fe
3+
3
(PO
4
)O
3
Strunz:
8.BE.10
Physical Properties
Crystal System:
Trigonal
Streak:
brown
Hardness:
0.0
