Lautarite

General Information:
 Chemical Formula:
Ca(IO3)2
 Composition:
(Molecular Weight = 389.88 gm)
Calcium 10.28 % Ca
Iodine 65.10 % I 
Oxygen 24.62 % O 
 Empirical Formula:
Ca(IO3)2
Physical Properties:
 Cleavage:
[011] Good, [100] Indistinct, [110] Indistinct
 Color:
colorless, yellowish, or light yellow.
 Density:
4.519
 Diaphaniety:
Transparent
 Hardness:
3.5-4 - Copper Penny-Flourite
 Luster:
Vitreous (Glassy)
 Streak:
white
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