Mandarinoite

General Information:
 Chemical Formula:
Fe+++2Se3O9·6(H2O)
 Composition:
(Molecular Weight = 600.66 gm)
Iron 18.60 % Fe
Hydrogen 2.01 % H 
Selenium 39.44 % Se
Oxygen 39.95 % O 
 Empirical Formula:
Fe3+2Se3O9·6(H2O)
 IMA Status:
Approved IMA 1978
Physical Properties:
 Cleavage:
None
 Color:
greenish white or light green.
 Density:
2.93
 Hardness:
2.5 - Finger Nail
 Luster:
Vitreous - Greasy
 Streak:
light green
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