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

Sorosilicate mineral

Properties

Chemical formula

(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀

Group

Silicates

Crystal system

Tetragonal

Hardness (Mohs)

6,5

Color

Yellow

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

P4/nnc

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.BG.35

Dana classification

58.2.4.1

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Ves

Locality

🇮🇹 Mount Somma

Type locality

—

Discovery year

—

Source: Wikidata