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 TOURMALINE
Crystal System:
trigonal
Hardness:
7 - 7,5
Specific Gravity:
3,06 + -
Refractive Index:
1,624 - 1,644 + -
Birefrigence:
0,020 + -
Dispersion:
0,009 - 0,011
Chemical Composition:
Complex Boron-Aluminium-Silicate

ICA-Info

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 Tourmaline

Item: TO0079
OnStock: 1 pc.


 Price/pc.:
EUR 1948,-

Quantity: pc.
Weight:
16,77 ct
Size:
16,50 x 16,50 mm
Shape:
Trilliant
Cut:
extraordinary
Clearity:
clean
Colour:
rosé-pink
Origin:
Nigeria
Treatments:
none

Gemstones/
Tourmaline/
Pink/Triangle:

EUR 1948,-/pc.
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