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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

Folvikite

Name

—

Sb⁵⁺Mn³⁺(Mg,Mn²⁺)₁₀O₈(BO₃)₄

Formula

—

Mineral Species

Entry type

—

Borates

Chemical class

—

Monoclinic

Crystal system

—

6

Mohs hardness

—

4.14

Specific gravity

—

Reddish brown

Streak

—

Strongly submetallic

Luster

—

None

Cleavage

—

P2

Space group

—

—

Structural group

—

Fvk · Approved

IMA

—

2016

Named in

—

Black to dark reddish brown

Typical colors

—

Sb · Mn · Mg · O · B

Elements

—