Hectorfloresite

General Information:
 Chemical Formula:
Na9(IO3)(SO4)4
 Composition:
(Molecular Weight = 766.06 gm)
Sodium 27.01 % Na
Sulfur 16.74 % S 
Iodine 16.57 % I 
Oxygen 39.68 % O 
 Empirical Formula:
Na9(IO3)(SO4)4
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
None
 Color:
colorless or white.
 Density:
2.8 - 2.85, Average = 2.82
 Diaphaniety:
Transparent
 Hardness:
2 - Gypsum
 Streak:
white
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