Pararobertsite

Formula: Ca₂Mn₃(PO₄)₃O₂.3H₂O

Origin of name: from Greek para = similar and robertsite

Crystal system: monoclinic

Crystal class: 2/m

Twinning: 

Unit cell: 

Colour: red

Diaphaneity: 

Luster: vitreous

Habit: plates to 0.2 mm and clusters of plates

Hardness: 1

Specific gravity: 3.22

Cleavage: 1; {100} perfect

Tenacity: 

Streak: brownish red

Synonyms/varieties:

Comments: dimorphous with robertsite