Aksaite

Formula:  MgB₆O₇(OH)₆^.2H₂O

Origin of name:  After locality; Ak-sa, Kazakhstan

Crystal system:  Orthorhombic

Crystal class:  2/m 2/m 2/m

Twinning:

Unit cell: a = 12.54 Å, b = 24.35 Å, c = 7.484 Å

Colour:  Light gray, colourless in small crystals

Diaphaneity: Translucent

Luster:

Habit:  Crystals elongated, flattened

Hardness:  2.5

Specific gravity:  1.99

Cleavage: 2; {100} and {010} probable

Tenacity:

Streak: White

Synonyms/varieties:

Comments: