Photo: Robert M. Lavinsky · CC BY-SA 3.0

Hydrous Mg-Al layered double hydroxide (LDH) containing carbonate anions

Properties

Chemical formula

Mg₆Al₂(CO₃)(OH)₁₆ * 4H₂O

Group

Carbonates

Crystal system

Trigonal

Hardness (Mohs)

—

Color

White

Luster

—

Streak

White

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

—

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

5.DA.50

Dana classification

—

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Htc

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata