Compare Minerals

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

Mineral A

Mineral B

Tassieite

Name

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NaCa₂Mg₃Fe²⁺₂Fe³⁺(PO₄)₆·2H₂O

Formula

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Mineral Species

Entry type

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Phosphates

Chemical class

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Orthorhombic

Crystal system

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Mohs hardness

—

3.45

Specific gravity

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Light green

Streak

—

Vitreous

Luster

—

Perfect to good on {100} and on a second direction at 60 o to the first

Cleavage

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Pbca

Space group

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Wicksite

Structural group

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Tas · Approved

IMA

—

2005

Named in

—

Dark green

Typical colors

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Na · Ca · Mg · Fe · P · O · H

Elements

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