Formula : Ca6Mn24+[(OH)6/(SO4,CO3)]2 * 26 H2O
System: hexagonal Hardness:2½ Rarity:very rare
Strunz id:VI/D.13-30 -
SULFATES, CHROMATES, MOLYBDATES and TUNGSTATES
Name origin: Named in 1965 by Christophe Gaudefroy and François Permingeat in honor of Georges Jouravsky (1896–1964), Chief Geologist, Geological Survey of Morocco, for his work on the mineral deposits of Morocco.
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