Tourmaline with epidote 19.5mm 29ct

Item Information

Dimensions (mm) 29 x 19.5 x 8mm
Weight (carats) 29 carats
Colors
No Treatment

ShangrilaGems

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Gemmological Association of Great Britain Corporate Member

Lovely specimen

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

Cleavage: Difficult/Indistinct  

General Chemical Formula: Various - It is a complex boro-silicate of Aluminium, Magnesium, Iron and copper.-

 

 

 

 

 

$49.95 USD

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Pricing & Details

Auction ID 645694
Watchers 8 watching
Viewed 4,249 times
Starts 24th Mar 2017 2:36pm PDT

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