General Information:
Chemical Formula:Fe+++2(SO4)3·10(H2O)
Composition:(Molecular Weight = 580.04 gm)Iron 19.26 %
FeHydrogen 3.48 %
H Sulfur 16.58 %
S Oxygen 60.68 %
O Empirical Formula: Fe3+2(SO4)3·10(H2O)
Name Origin:Named after the German mineralogist, F. A. Quenstedt (1809-1889).
Physical Properties: Cleavage:[010] Perfect
Color:white, light violet, or red violet.
Density:2.14
Diaphaniety:Transparent
Habits:Euhedral Crystals - Occurs as well-formed crystals showing good external form., Granular - Generally occurs as anhedral to subhedral crystals in matrix.,
Hardness:2.5 - Finger Nail
Luster:Vitreous (Glassy)
Streak:light violet blue
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