Haineaultite

Formula: Na₅CaTi₅Si₁₂O₃₄(OH)₈·5H₂O

Origin of name: Honouring the Canadian collector and mineral dealer Gilles Haineault (1946-)

Crystal system: Orthorhombic

Crystal class: 2 2 2

Twinning: 

Unit cell: a = 7.024, b = 23.155, c = 6.953

Colour: Pale brown, pale honey-yellow, brown, pale orange yellow, colourless to white

Diaphaneity: Transparent to translucent

Luster: Vitreous

Habit: 

Hardness: 3-4

Specific gravity: 2.28

Cleavage: [100], [010], [001] distinct/good

Tenacity: Brittle

Streak: White

Synonyms/varieties:

Comments:  Ca analogue of zorite