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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(Mg,Fe)₃(PO₄)₂·8H₂O

Formula

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Mineral Species

Entry type

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Phosphates

Chemical class

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Monoclinic

Crystal system

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Mohs hardness

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Specific gravity

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White to pale blue, darkening after several days

Streak

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Vitreous, pearly on {01O}

Luster

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Cleavage

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C2/m

Space group

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Vivianite

Structural group

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Bć · Approved

IMA

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1975

Named in

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Colorless to pale blue, varies with iron oxidation

Typical colors

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Mg · Fe · P · O · H

Elements

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