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

Calcium-rich feldspar mineral

Properties

Chemical formula

CaAl₂Si₂O₈

Group

Oxides

Crystal system

Triclinic

Hardness (Mohs)

—

Color

White

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

triclinic-pedial

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.FA.35

Dana classification

76.1.3.6

IMA status

Grandfathered mineral (G)

IMA symbol

An

Locality

🇮🇹 Mount Somma

Type locality

—

Discovery year

—

Source: Wikidata