Photo: Wikimedia Commons

Feldspar, tectosilicate mineral

Properties

Chemical formula

NaBSi₃O₈

Group

Silicates

Crystal system

Triclinic

Hardness (Mohs)

6,3

Color

Colorless

Luster

—

Streak

—

Density

2,776 g/cm³

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

triclinic-pinacoidal

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.FA.35

Dana classification

76.1.4.1

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Rm

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata