Tanzaniet 6.1 ct gecertificeerd

6,10 karaat ALGT gecertificeerd blauwpaars ovaal geslepen  natuurlijke Tanzaniet

Groep ................................................................................ Natural Zoisite
Soort ...................................................................................Tanzanite
Vorm.................................................................................. Ovaal geslepen
Kroonvorm ..................................................................... Aangepast briljant slijpsel
Paviljoen vorm .............................................................. Aangepast briljant slijpsel
Transparantie ................................................................. Transparant
Kleur................................................................................... blauw paars
Soort.................................................................................. Zoisiet
Soortnaam........................................................................Tanzaniet
Afmetingen (Lang x Breed x Hoogte): .................12.52 x 9.74 x 6.99 mm
Hardheid: ........................................................................ 6-7

MAIN PROPERTIES OF TANZANITE
Chemical Composition ......................... Ca2Al3(SiO4)(Si2O7)(O,OH)
Crystal System ............................................................... Orthorhombic
Mohs Hardness ......................................................................... 6.5 - 7.0
Specific Gravity ...................................................... 3.33 - 3.36 g/cm3
Optical Character ....................................................................... Biaxial+
Refractive Index ............................................................. 1.690 - 1.702
Birefringence ................................................................... 0.006 - 0.012