Oxide mineral

Properties

Chemical formula

(U,Y)(Ti,Nb,Ta)₂(O,OH)₆

Group

Oxides

Crystal system

Orthorhombic

Hardness (Mohs)

—

Color

Brown

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

60

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

4.DG.05

Dana classification

8.3.8.5

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Uplc

Locality

🇮🇹 San Piero in Campo

Type locality

—

Discovery year

—

Source: Wikidata