Franciscanite

Photo: David Hospital · CC BY 4.0

Franciscanite

Franciscanite

Mn²⁺₆(V₅+,☐)₂(SiO₄)₂(O,OH)₆

Nesosilicate mineral

Properties

Chemical formula
Mn²⁺₆(V₅+,☐)₂(SiO₄)₂(O,OH)₆
Group
Silicates
Crystal system
Hexagonal
Hardness (Mohs)
—
Color
—
Luster
—
Streak
—
Density
—
Cleavage
—
Fracture
—
Tenacity
—
Crystal habit
—
Transparency
—
Space group
—
Fluorescence
—
Magnetism
—
Radioactivity
—
Refractive index
—
Optical character
—
Birefringence
—
Pleochroism
—
Strunz classification
9.AF.75
Dana classification
—
IMA status
Approved mineral and/or valid name (A)
IMA symbol
Fcc
Locality
—
Type locality
—
Discovery year
—

Source: Wikidata

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