Services     SINGLE STONES            PAIRS                     SETS                CABOCHONS         COLLECTOR'S       DESIGNER'S    
 Site map          WELCOME          ORDER TERMS           MINERALS                RESERVE           CONTACT US          ABOUT US    
Usually ships within 24 hours     SEARCH FORM   HELP   INFO. FR   TRACK ORDERS    GEM GUIDE
LOOSE GREEN TOURMALINE     NATURAL COLOR     Hardness 7.5  
Online Certificate
RETURN TO »» GREEN TOURMALINE
Tourmaline chemical composition is (Na, Li,Ca) (Fe2, Mg, Mn, Al)3 Al6 I(OH)4 I (BO3)3ISi6O18I .
Crystaline system: Trigonal.
Occurences: In the acid magmatic rocks and associated pegmatites, marble and schists, placers.
Coloured tourmalines are related to sodolithic pegmatites.
One distinguishes two principal types of tourmalines: the hexagonal type and the triangular one.
8.77 cts. Rectangle green tourmaline single
  x Pieces: 1 Tourmaline x x Type: 100% Natural
 
  Color: Green medium   Shape: Emerald cut
                 
  Weight: 8.77 Carats   Size: 12.5 x 11  mm.
 
  Clarity: FL   Luster: Good
 
  Treatment: None (N)   Origin: Madagascar
We use a  microscopic photography system.   Refr. Index: 1.62-1.64   Hardness 7.5
The actual gemstone is smaller than the images shown.
 Untreated in any way
                                                                    
Stone Price: SOLD

ref:GrTore877 

  

Depth:6.5 mm.

   
Why Shop With GGGems.com ?
12-Days Inspection Period
Gemological Authenticity
No Risk Payment
No Risk Return Policy
Swiss Owned
24 Hour Email Response
Secure Insured Delivery A. Darbellay;  your guide to GGGems.com
Customer Commitment
Qualified Gemologists RETURN TO »» GREEN TOURMALINE
Fluent English Support by e-mail
Order Terms                              Faq                            Reserve Collection
Back to top  Litho therapy Minerals Collector's Cabochons Contact us
 
 
 
Will ship Worldwide
  Green Verdict Image
© 1987 - 2015  gggems.com  All rights reserved.