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€5,67 EUR
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Rough tourmaline - for faceting or rough gemstone jewelry - 1.299 ct - very light to bright green
additional light used to indicate clearness and colors
Certificate: RO-TOUR025BG-002-444
Gem Type: Tourmaline
Weight: 1.299 Carat
Shape: Rough
Size: 7.8 x 3.9 x 3.6 mm.
Color: very light green to bright green with tones of bluish green
Clarity: Transparent
Luster: N/A
Treatment: Unheated Untreated
Birefringence : 0.020
Crystallography : Hexagonal (trigonal)
Dispersion : 0.017
Luster : Vitreous
Hardness : 7
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