schreyerite

Also known as IMA1976-004

Schreyerite (V2Ti3O9), is a vanadium, titanium oxide mineral found in the Lasamba Hill, Kwale district in Coast Province, Kenya. It is polymorphous with kyzylkumite.

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Nickel-Strunz 9th edition (updated 2009): 4.CB.35
Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 4.CB.35
chemical formula: V³⁺₂Ti₃O₉
IMA Mineral Symbol: Sry
Commons category: Schreyerite

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Introduction
Optical and physical properties
References

Schreyerite (V2Ti3O9), is a vanadium, titanium oxide mineral found in the Lasamba Hill, Kwale district in Coast Province, Kenya. It is polymorphous with kyzylkumite.

The mineral occurs as exsolution lamellae and particles in rutile, coexisting with kyanite, sillimanite, and tourmaline in a highly metamorphosed gneiss. It was named after German mineralogist and petrologist Werner Schreyer, for his research on mineralogy of rock-forming minerals and petrology of metamorphic rocks both in nature and by experiment.