Dietzeite

General Information:
 Chemical Formula:
Ca2(IO3)2(CrO4)
 Composition:
(Molecular Weight = 545.96 gm)
Calcium 14.68 % Ca
Chromium 9.52 % Cr
Iodine 46.49 % I 
Oxygen 29.31 % O 
 Empirical Formula:
Ca2(IO3)2(CrO4)
Physical Properties:
 Cleavage:
[100] Indistinct
 Color:
golden yellow.
 Density:
3.617
 Diaphaniety:
Transparent
 Hardness:
3.5 - Copper Penny
 Luster:
Vitreous (Glassy)
 Streak:
light yellow
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