Photo: David Hospital · CC BY-SA 4.0

Sorosilicate mineral

Properties

Chemical formula

Mn²⁺₂Al₃(SiO₄)(Si₂O₇)(OH)₃

Group

Silicates

Crystal system

Monoclinic

Hardness (Mohs)

—

Color

Brown

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

P2₁/m

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.BG.15

Dana classification

58.2.3.1

IMA status

Grandfathered mineral (G)

IMA symbol

Ss

Locality

🇨🇭 Parsettens Alp

Type locality

—

Discovery year

—

Source: Wikidata