Questionable oxide mineral

Properties

Chemical formula

(Y,As,Ca,Fe,U)(Nb,Ti,Ta)O₄

Group

Oxides

Crystal system

—

Hardness (Mohs)

—

Color

—

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

4.DB.25

Dana classification

—

IMA status

Questionable (Q)

IMA symbol

Pís-Y

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata