Compare Minerals

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

Mineral A

Mineral B

Gladiusite

Name

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Fe³⁺₂Fe²⁺₄(PO₄)(OH)₁₁·H₂O

Formula

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Mineral Species

Entry type

—

Phosphates

Chemical class

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Monoclinic

Crystal system

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4–4.5

Mohs hardness

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3.11

Specific gravity

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Olive-green, (in 10-12 hours, changes to brownish red)

Streak

—

Vitreous

Luster

—

None

Cleavage

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P2_1/n

Space group

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Structural group

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Gds · Approved

IMA

—

1998

Named in

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Dark green, almost black

Typical colors

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Fe · P · O · H

Elements

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