Pyrophanite

A variety of Minerals

Pyrophanite specimen - rock identification

What is Pyrophanite?

Pyrophanite is a manganese titanium oxide mineral with formula: MnTiO3. It is a member of the ilmenite group. It is a deep red to greenish black mineral which crystallizes in the trigonal system.

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Pyrophanite Localities Map

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North ZoneCentral RidgeSouth Basin

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Key Characteristics

Formation of Pyrophanite

It was first described in 1890 from an occurrence in the Harstigen Mine, Filipstad, Värmland, Sweden. Its name was derived from the Greek πΰρ, fire, and φαίνεσθαι, to appear, because of the deep red color of the mineral. Its main occurrence is in manganese deposits that have undegone metamorphism. It also occurs in granite, amphibolite and serpentinite as an uncommon accessory mineral. Associated minerals include ilmenite, geikielite, hematite, spinel, gahnite, chromite, magnetite, ganophyllite, manganophyllite, hendricksite, garnet and calcite.

Quick Facts

Physical Properties

Color
Blood red, greenish yellow, brownish, blackish
Hardness (Mohs)
5 - 6
Density
4.596 g/cm³
Streak
Ochre yellow with greenish tinge

Chemical Properties

Chemical Formula
Mn2+TiO3 Sb-bearing varieties are known from several metamorphic manganese mineralisations.
Elements
Mn, O, Ti
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