Epidote supergroup, sorosilicate mineral

Properties

Chemical formula

CaLa(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH)

Group

Silicates

Crystal system

Monoclinic

Hardness (Mohs)

—

Color

—

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

P2₁/m

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.BG.05b

Dana classification

58.2.1a.2

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Aln-La

Locality

🇮🇹 Buca della Vena mine

Type locality

—

Discovery year

—

Source: Wikidata