Scholzite

Formula: CaZn₂(PO₄)₂.2H₂O

Origin of name: for A. Scholz, German collector

Crystal system: orthorhombic

Crystal class: mm2

Twinning:

Unit cell: a = 17.14 Å, b = 22.19 Å, c = 6.61 Å

Colour: colourless to white

Diaphaneity: transparent

Luster: vitreous

Habit: crystals acicular, tabular or platy, to 2.5 cm, may be pseudohexagonal, interlocking tufts and rosettes

Hardness: 3 to 3.5

Specific gravity: 3.11

Cleavage: 1; {100} fair

Tenacity: brittle

Streak: 

Synonyms/varieties:

Comments: dimorphous with parascholzite