Sellaite

Source: Wikipedia, the free encyclopedia.
Sellaite
Specific gravity
3.15
Optical propertiesUniaxial (+)
Refractive indexnω = 1.378
nε = 1.390
Birefringenceδ = 0.012
References[2][3][4]

Sellaite is a

specific gravity of 2.97 to 3.15. Refractive index
values are nω = 1.378 and nε = 1.390.

Discovery and occurrence

Sellaite was first described in 1868 and named for Italian mining engineer and mineralogist

Vesuvius; in a metamorphic magnesite deposit at Serra das Éguas [pt]; and in sodic alkali granite near Gjerdingen [no].[2][3]

References

  1. S2CID 235729616
    .
  2. ^ a b Mineral Data Publishing: Handbook of Mineralogy
  3. ^ a b Mindat with location data
  4. ^ Webmineral data
  • Palache, C., H. Berman, and C. Frondel (1951) Dana’s system of mineralogy, (7th edition), v. II, pp. 37–39


This article about a specific halide mineral is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Sellaite&oldid=1138635921"