Photo: Modris Baum · CC0

Phyllosilicate mineral

Properties

Chemical formula

Na₂Zr(Si₄O₁₁)·2H₂O

Group

Silicates

Crystal system

Monoclinic

Hardness (Mohs)

—

Color

Colorless

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

P2₁/c

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.EA.60

Dana classification

—

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Tum

Locality

🇷🇺 Vuoriyarvi alkaline-ultrabasic massif

Type locality

—

Discovery year

—

Source: Wikidata