Sarabauite

General Information:
 Chemical Formula:
CaSb10O10S6
 Composition:
(Molecular Weight = 1,609.97 gm)
Calcium 2.49 % Ca
Antimony 75.62 % Sb
Sulfur 11.95 % S 
Oxygen 9.94 % O 
 Empirical Formula:
CaSb10O10S6
 IMA Status:
Approved IMA 1977
Physical Properties:
 Color:
carmine red or red.
 Density:
4.8
 Hardness:
4.5 - Between Fluorite and Apatite
 Luster:
Resinous
 Streak:
orange
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