TOURMALINE COLOR CHANGE 3.11 CARATS OVAL SHAPE - 20271 Beautiful Mix of Red Yellow & Green. 9.8 x 7.7 mm. 100% Natural - Not treated in any way. Rare Collectors Gem Will make a Gorgeous Ring or Pendent accented with Diamonds. Gem with High Lustre and Good Clarity.
Large Sizes are Extremely Rare! A Gem of Lasting Beauty. Tourmaline Color-change - A unique color miracle displaying a Mix of Red, Yellow, Gold and Green - Rare type of Tourmaline Refractive Index:1.624+. 006.006 Hardness: 7-7.5 Chemical Comp: (NaCa)(LI, MgFe, Al)9B3Si6(O, OH)31 Density: 3.06.15 Crystal Group: Hexagonal The name Tourmaline comes from the Singhalese (Sri Lankan) words tura mali' Gem with several colors some have two or more colors, some even color-changing, and also a rare variety- the Cats-eye.
Sri Lanka produces a beautiful multi-colored tourmaline a mix of red yellow and green which are more like color-changing. Multicolored gems are truly a gemological wonder, as they have a unique beauty of their own displaying different colors at different angles due to pleochroism. The item "TOURMALINE COLOR CHANGE 3.11 CARATS OVAL SHAPE NATURAL SRI LANKA GEM 20271" is in sale since Wednesday, February 5, 2020. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Tourmaline".The seller is "cresla" and is located in Colombo. This item can be shipped worldwide.