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Compare Minerals

Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.

Mineral A

VS

Mineral B

Neotocite

Name

—

(Mn,Fe)SiO₃·H₂O

Formula

—

Mineral Species

Entry type

—

Silicates

Chemical class

—

Amorphous

Crystal system

—

3–4

Mohs hardness

—

2.1–2.7

Specific gravity

—

Dark brown to black

Streak

—

Dull to resinous or vitreous, may be feebly metallic

Luster

—

—

Cleavage

—

—

Space group

—

Allophane

Structural group

—

Neo · Grandfathered

IMA

—

1849

Named in

—

Black, dark brown to dark olive-green

Typical colors

—

Mn · Fe · Si · O · H

Elements

—