Cyprine (of Berzelius)

Cyprine is a sky-blue variety of Vesuvianite from Norway. It was first described in 1820 by Berzelius from specimens found in Kleppan, Sauland, Telemark, Norway.
General Information
A variety or type of:Vesuvianite
Physical Properties of Cyprine (of Berzelius)
Mohs Hardness6 to 7
Michael O’Donoghue, Gems, Sixth Edition (2006)
Specific Gravity3.25 to 3.50
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Optical Properties of Cyprine (of Berzelius)
Refractive Index1.698 to 1.723
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
Optical CharacterUniaxial/-
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
Birefringence0.001 to 0.012
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
Colour
Colour (General)Blue, pale blue
Gemdat.org, Management Team (2012)
Causes of ColourColoured by traces of copper
Gemdat.org, Management Team (2012)
Crystallography of Cyprine (of Berzelius)
Crystal SystemTetragonal
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
HabitPrismantic
Michael O’Donoghue, Gems, Sixth Edition (2006)
Further Information
Mineral information:Cyprine (of Berzelius) information at mindat.org
Significant Gem Localities
Norway
 
  • Telemark
    • Hjartdal
      • Sauland
        • Kleppan
Walter Schumann, Gemstones of the world (2001)
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