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Vertumnite
Type Locality
Campomorto Quarry, Pietra Massa Locality, Montalto di Castro, Viterbo Province, Latium, Italy
Mineral Data
Ca
4
Al
4
Si
4
O
6
(OH)
24
·3H
2
O
Strunz:
9.EG.25
Physical Properties
Hardness:
5.0
Tenacity:
very brittle
