Photo: Robert M. Lavinsky · CC BY-SA 3.0

Magnesium-Fe phyllosilicate mineral of the serpentine group

Properties

Chemical formula

Mg₃Si₂O₅(OH)₄

Group

Silicates

Crystal system

Monoclinic

Hardness (Mohs)

—

Color

Green

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.ED.15

Dana classification

—

IMA status

Redefined mineral (Rd)

IMA symbol

Atg

Locality

🇨🇭 Binn valley

Type locality

—

Discovery year

—

Source: Wikidata