Photo: Jędrzej Pełka · Public domain

Nesosilicate mineral

Properties

Chemical formula

U(SiO₄) * nH₂O

Group

Silicates

Crystal system

Tetragonal

Hardness (Mohs)

—

Color

Black

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

I4₁/amd

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.AD.30

Dana classification

51.5.2.4

IMA status

Grandfathered mineral (G)

IMA symbol

Cof

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata