Cobaltomenite

Formula:  CoSeO₃ ^. 2H₂O

Origin of name:  From composition and from Greek for moon

Crystal system:  Monoclinic

Crystal class:  2/m

Twinning:

Unit cell:

Colour:  Pink

Diaphaneity:

Luster:

Habit:  Crystals minute, resemble erythrite; crystalline crusts

Hardness:  2 to 2.5

Specific gravity:  3.39

Cleavage:  None

Tenacity:

Streak:

Synonyms/varieties:

Comments:  Series with ahlfeldite