Photo: Wikimedia Commons

Questionable hydrous oxide mineral

Properties

Chemical formula

(Mn,Ca)(Ti,Nb)₅O₁₂ * 9H₂O

Group

Oxides

Crystal system

Amorphous solid

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

4.FM.25

Dana classification

—

IMA status

Questionable (Q)

IMA symbol

Mbyn

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata