Photo: David Hospital · CC BY-SA 4.0

Mg-Fe-Mn-amphibole, double chain inosilicate mineral

Properties

Chemical formula

☐Mg₂Mg₅Si₈O₂₂(OH)₂

Group

Silicates

Crystal system

Orthorhombic

Hardness (Mohs)

—

Color

—

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

58

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.DE.05

Dana classification

—

IMA status

Redefined mineral (Rd)

IMA symbol

Path

Locality

🇯🇵 Takase mine

Type locality

—

Discovery year

—

Source: Wikidata