Photo: Didier Descouens · CC BY-SA 3.0

Mineral, Na-feldspar, Na-silicate, tectosilicate

Properties

Chemical formula

NaAlSi₃O₈

Group

Silicates

Crystal system

Triclinic

Hardness (Mohs)

—

Color

White

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

Conchoidal

Tenacity

—

Crystal habit

—

Transparency

—

Space group

triclinic-pinacoidal

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.FA.35

Dana classification

76.1.3.1

IMA status

Grandfathered mineral (G)

IMA symbol

Ab

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata