Sellaite Value, Price, and Jewelry Information
An overview on Sellaite Jewelry and Gemstones. Covers details and essential information on the physical properties and characteristics of Sellaite gems.
By Joel E. Arem, Ph.D., FGA, updated on
Optics:o=1.378; e= 1.390.
Uniaxial (+).
Occurrence: Sellaite occurs in a wide variety of geological environments.
Vesuvius, Italy: in volcanic fumaroles.
Harz Mountains, Germany: in evaporite beds.
Italy; France: in veins.
Nertschin, Russia: in pegmatites.
Oslo Region, Norway: cavities in a soda-granite.
Brumado Mine, Bahia, Brazil: gemmy crystals in a metamorphic magnesite deposit.
Name: After the Italian mining engineer and mineralogist, Quintino Sella.
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