Sorosilicate mineral

Properties

Chemical formula

(☐,Fe,Mg)(Mg,Al,Fe)₅Al₄Si₂(Si,Al)₂(B,Si,Al)(O,OH,F)₂₂

Group

Silicates

Crystal system

Orthorhombic

Hardness (Mohs)

—

Color

—

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

63

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.BJ.50

Dana classification

—

IMA status

Redefined mineral (Rd)

IMA symbol

Prm

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata