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Formula: Ca₁₀Al₂₄(SiO₄)₆(PO₄)₇O₂₂F₃.72H₂O

Origin of name: after locality Vise, Belgium

Crystal system: cubic

Crystal class: unknown

Twinning:

Unit cell: 

Colour: white, bluish white, yellowish white

Diaphaneity: translucent, transparent in thin fragments

Luster: vitreous

Habit: massive, minute nodes

Hardness: 3 to 4

Specific gravity: 2.2

Cleavage: none

Tenacity: 

Streak: 

Synonyms/varieties:

Comments: