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Ferro-glaucophane
Type Locality
Herin mine, Champdepraz, Aosta Valley, Italy
Mineral Data
◻[Na
2
][Fe
2+
3
Al
2
]Si
8
O
22
(
Strunz:
9.DE.25
Physical Properties
Hardness:
5.0 - 6.0
Synonyms
Synonyms:
Ferroglaucophane
