Paranatrolite

Formula: Na₂Al₂Si₃O₁₀.3H₂O

Origin of name: from Greek para = similar and natrolite

Crystal system: monoclinic, pseudo-orthorhombic

Crystal class: m

Twinning: 

Unit cell: 

Colour: colourless

Diaphaneity: transparent

Luster: vitreous

Habit: epitactic overgrowths to 1 mm thick

Hardness: 5 to 5.5

Specific gravity: 2.21

Cleavage: none

Tenacity: 

Streak: 

Synonyms/varieties:

Comments: