Magnesioferrite

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Magnesioferrite
Specific gravity
4.55 – 4.65 measured
Optical propertiesIsotropic
Refractive indexn = 2.38
Other characteristicsMagnetic
References[2][3][4]

Magnesioferrite is a magnesium iron oxide mineral, a member of the magnetite series of spinels. Magnesioferrite crystallizes as black metallic

octahedral crystals. It is named after its chemical composition of magnesium and ferric iron
. The density is 4.6 - 4.7 (average = 4.65), and the diaphaniety is opaque. Occurs as well-formed fine sized crystals or massive and granular. Its hardness is 6-6.5. It has a metallic luster and a dark red streak.

Occurrence

It occurs in

meteorite impacts, and as accessory phase in kimberlites and carbonatites.[2]

It has been reported from

Vesuvius and Stromboli, Italy
.

References

  1. S2CID 235729616
    .
  2. ^ a b Handbook of Mineralogy
  3. ^ Magnesioferrite on Mindat.org
  4. ^ Magnesioferrite on Webmineral
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