Photo: Didier Descouens · CC BY-SA 4.0

Basic carbonate of zinc and copper

Properties

Chemical formula

(Zn,Cu²⁺)₅(CO₃)₂(OH)₆

Group

Carbonates

Crystal system

Monoclinic

Hardness (Mohs)

2

Color

Green

Luster

—

Streak

Light blue

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

5.BA.15

Dana classification

16a.4.2.1

IMA status

Grandfathered mineral (G)

IMA symbol

Ach

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata