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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

F

Fluorotetraferriphlogopite

Name

—

KMg₃Fe³⁺Si₃O₁₀F₂

Formula

—

Mineral Species

Entry type

—

Silicates

Chemical class

—

Monoclinic

Crystal system

—

3–4

Mohs hardness

—

2.966

Specific gravity

—

Pale brown

Streak

—

Pearly

Luster

—

Perfect on {001}

Cleavage

—

C2/m

Space group

—

Mica

Structural group

—

Ftfphl · Approved

IMA

—

2010

Named in

—

Brown

Typical colors

—

K · Mg · Fe · Si · O · F

Elements

—