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Pyroxmangite

A species of Minerals

Pyroxmangite has the general chemical formula of MnSiO3. It is the high-pressure, low-temperature dimorph of rhodonite. It was first described in 1913 and named for the mineral group, pyroxenes, and is known as the manganese member. It forms a series with pyroxferroite. Pyroxmangite occurs in metamorphosed ore deposits rich in manganese. Associated minerals include spessartine, tephroite, alleghanyite, hausmannite, pyrophanite, alabandite, rhodonite and rhodochrosite.

Hardness:

5.5 - 6

Density:

3.75 g/cm³

General Info About Pyroxmangite

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Physical Properties of Pyroxmangite

Colors

Pink, red, brown

Streak

Colorless

Hardness

5.5 - 6 , Hard

Density

3.75 g/cm³, Obviously Heavy Weight

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Chemical Properties of Pyroxmangite

Formula

MnSiO₃

Elements listed

Mn, O, Si

Common Impurities

Al,Fe,Mg,Ca,Na,K,H₂O

Optical Properties of Pyroxmangite

Refractive Index

1.735-1.756

Birefringence

0.017-0.019

Optical Character

Biaxial positive

Characteristics of Pyroxmangite

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