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Vanadiocarpholite

Named for the vanadium in the composition and for its relationship to carpholite. It is a rare mineral that occurs only in Italy at the Molinello mine, the type locality, and the Valgraveglia mine, both in Liguria. It occurs at the type locality in thin veins and open fissures in a silicified wood sample from manganese-ore bearing cherts. It appears as honey yellow to brown to pale straw yellow aggregates of acicular crystals that are associated with volborthite and quartz.
Ref. Basso, R., et al. and the European Journal of Mineralogy May, June 2005 v. 17 no. 3 p. 501-507
- Formula
- Mn2+V3+AlSi2O6(OH)4
- Crystal System
- Orthorhombic
- Crystal Habit
- Acicular
- Cleavage
- Perfect, None, None
- Luster
- Vitreous - Silky
- Color
- pale straw yellow, brown
- Class
- Orthorhombic - Dipyramidal
- Fracture
- Flexible
- Hardness
- -
- WebMineral
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Vanadiocarpholite from Molinello mine, Graveglia Valley, Liguria, Italy
