Heterosite

Formula:  Fe(PO₄)

Origin of name:   From Greek for another

Crystal system:  Orthorhombic

Crystal class:  2/m 2/m 2/m

Twinning: 

Unit cell: 

Colour:  Deep rose to reddish purple, dark pink 

Diaphaneity:  Subtranslucent to opaque

Luster:  Dull to satiny

Habit:  Massive

Hardness:  4 to 4.5

Specific gravity:  3.41

Cleavage:  2; {110} good, {010} imperfect

Tenacity: 

Streak:  Reddish purple

Synonyms/varieties:

Comments:  Series with purpurite