Photo: Leon Hupperichs · CC BY-SA 3.0

Oxysulfate mineral

Properties

Chemical formula

K₄Cu₄O₂(SO₄)₄·(Na,Cu)Cl

Group

Sulfates

Crystal system

Tetragonal

Hardness (Mohs)

—

Color

Green

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

7.BC.40

Dana classification

30.2.7.1

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Piy

Locality

🇷🇺 Great Fissure eruption

Type locality

—

Discovery year

—

Source: Wikidata