Nice gem. As described. Fast delivery
|Dimensions (mm)||29 x 19.5 x 8mm|
|Weight (carats)||29 carats|
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Gemmological Association of Great Britain Corporate Member
Tourmaline Gemstone Information
Tourmaline is an extremely complex borosilicate that occurs in every color; more than 100 colors and still counting! As a result a range of chemical compositions occur; also many individual crystals show zones of multiple colors. The West was introduced to Tourmaline in 1702 when the Dutch first imported it from Ceylon.
Tourmaline Healing Properties this gemstone promotes happiness, tolerance, objectivity and being well grounded as well as empathy, internal peace, positive attitude and internal strength.
Specifications of Tourmaline
Hardness on Mohs scale: 7-7.5 Toughness: Good
Luster: Vitreous Specific Gravity: 3.0-3.1
Refractive Index: 1.62-1.65
General Chemical Formula: Various - It is a complex boro-silicate of Aluminium, Magnesium, Iron and copper.-
The Gemstone Sheriff program allows our members to request an audit on any auction, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.
|Starts||24th Mar 2017 2:36pm PDT|
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