Aplowite

Formula:  (Co, Mn, Ni)SO₄^.4H₂O

Origin of name:  For A.P. Low, Canadian geologist

Crystal system:  Monoclinic

Crystal class:  2/m

Twinning:

Unit cell: a = 5.94 Å, b = 13.56 Å, c = 7.9 Å, b = 90.5°

Colour:  Pink

Diaphaneity: Transparent

Luster:  Vitreous

Habit:  Fine-grained

Hardness:  2.5 to 3

Specific gravity:  2.0 to2.33

Cleavage:  None

Tenacity:

Streak:  White

Synonyms/varieties:

Comments:  Water soluble efflorescence