Product details
100% Natural – Not treated in any way.
Rare Colectors Gem !
Suitable for Museums,Institutions and Students of Gemology.
Beautiful sharp Catseye effect.
Among the Rarest of gemstones.
RI:1.624(+.005, -.005) - 1.644 Hardness: 7-7.5 CC: (NaCa)(LI,MgFe,Al)9B3Si6(O,OH)31 Density: 3.06 (.05, +.15) Crystal Group: Hexagonal
Some Tourmalines contain tiny, parallel inclusions, causing them to display a strong chatoyancy and are cut en-cabochon to cats-eyes,which are rare- a collector’s gem.Tourmaline comes from the Singhalese (Sri Lankan) words‘tura mali’ – gem with several colors. Tourmalines come in a variety of colors, some have two or more colors, some even color-changing.
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