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LOOSE PINK TOURMALINE        NATURAL COLOR       Hardness 7.5  
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RETURN TO PINK 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.
2.80 cts. Round pink tourmaline single
  x Pieces: 1 Tourmaline x x Type: 100% Natural
 
  Color: Pastel pink   Shape: Round faceted
                 
  Weight: 2.80 Carats   Size: 9.1 Depth 6.2 mm.
 
  Clarity: FL   Luster: Good
 
  Treatment: None (N)   Origin: Madagascar
We use a  microscopic photography    Refr. Index: 1.62-1.64   Hardness 7.5
system. The actual gemstone is smaller than the images shown.
                                                      
Stone Price:  USD 139.00

ref:PiTor280

   Depth:6.2 mm.
   
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