Formula : K(V3+,Al)2[(OH)2/AlSi3O10]
System: monoclinic Hardness:2½ Rarity:not common
Strunz id:VIII/H.10-50 -
SILICATES
Name origin: For Sir Henry Enfield Roscoe, FRS (7 January 1833 - 18 December 1915), an English chemist particularly noted for early work on vanadium and for photochemical studies.
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