Camgasite

Formula:  CaMg(AsO₄)(OH) ^. 5H₂O

Origin of name:  From elements in composition

Crystal system:  Monoclinic

Crystal class:  2/m

Twinning:

Unit cell:

Colour:  Colourless

Diaphaneity:  Transparent to translucent

Luster:  Vitreous

Habit:  Euhedral prismatic crystals to 0.15 mm long

Hardness:  2

Specific gravity:  2.4

Cleavage:  2; {100}, {001} good

Tenacity:

Streak:  White

Synonyms/varieties:

Comments:  Easily soluble in dilute HCl and HNO₃