Photo: David Hospital · CC BY-SA 4.0

Questionable hydrotalcite supergroup mineral

Properties

Chemical formula

(Ni₁-xAlx)(SO₄)x/₂(OH)₂ * nH₂O

Group

Oxides

Crystal system

Hexagonal

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

7.DD.35

Dana classification

—

IMA status

Questionable (Q)

IMA symbol

Cby

Locality

🇦🇺 Carr Boyd Rocks mine

Type locality

—

Discovery year

—

Source: Wikidata