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

Feldspar, tectosilicate mineral

Properties

Chemical formula

BaAl₂Si₂O₈

Group

Silicates

Crystal system

Monoclinic

Hardness (Mohs)

—

Color

—

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

P2₁/a

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.FA.40

Dana classification

76.1.5.1

IMA status

Grandfathered mineral (G)

IMA symbol

Pcls

Locality

🇮🇹 Candoglia

Type locality

—

Discovery year

—

Source: Wikidata