Jouravskite

See 1 specimen in the collection

Identity

Formula Ca3Mn4+(SO4)(CO3)(OH)6·12H2O
Class Sulfates
Crystal System Hexagonal
Hardness 2.5
Color Greenish yellow to greenish orange, pink when aluminous
Lustre Vitreous
Specific Gravity 1.81 - 1.95
Cleavage Good on {1010}
Streak Greenish white
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Bright yellow jouravskite crystals on white xonotlite matrix with reflection.
Jouravskite on Xonotlite