Compare Minerals

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

Mineral A

Mineral B

Name

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Mn²⁺Fe²⁺Mg₂Al₂(PO₄)₄(OH)₂·8H₂O

Formula

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Mineral Species

Entry type

—

Phosphates

Chemical class

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Crystal system

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3–4

Mohs hardness

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2.67

Specific gravity

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Streak

—

Luster

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On {001}, good to perfect

Cleavage

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Space group

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Jahnsite

Structural group

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Wt-MnFeMg · Approved

IMA

—

1978

Named in

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Chocolate-brown; colorless in thin fragments

Typical colors

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Mn · Fe · Mg · Al · P · O · H

Elements

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