Photo: Okuryazan · CC BY-SA 4.0

Soft and porous white magnesium silicate clay mineral

Properties

Chemical formula

Mg₄Si₆O₁₅(OH)₂·6H₂O

Group

Silicates

Crystal system

Orthorhombic

Hardness (Mohs)

2–2,25

Color

White

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

52

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.EE.25

Dana classification

—

IMA status

Grandfathered mineral (G)

IMA symbol

Sep

Locality

🇮🇹 Bettolino

Type locality

—

Discovery year

—

Source: Wikidata