Photo: Wikimedia Commons · Public domain

Opaque, blue-to-green mineral

Properties

Chemical formula

CuAl₆(PO₄)₄(OH)₈·4H₂O

Group

Oxides

Crystal system

Triclinic

Hardness (Mohs)

—

Color

Blue

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

triclinic-pedial

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

8.DD.15

Dana classification

42.9.3.1

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Tqu

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata