Natural green Prehnite - 15.02 ct - Rough Gemstone - unheated - Certified by NGB
Natural green Prehnite - 15.02 ct - Rough Gemstone - unheated - Certified by NGB
Natural green Prehnite - 15.02 ct - Rough Gemstone - unheated
Discover the incredible beauty and unique qualities of unheated rough gemstones with this stunning 15.02 ct Natural green Prehnite. Certified as natural by NGB, this gemstone is a one-of-a-kind piece that will add a touch of natural elegance to any collection. Treat yourself or someone special to the beauty of nature with this exquisite gemstone.
Certificate : RO-PREH024GR-001-110
Gem Type: Prehnite
Weight: 15.02 Carat
Shape: Rough
Size: 17.4 x 14.2 x 9.4 mm.
Color: clear green (yellowish)
Clarity: Semi-Translucent
Luster: N/A
Treatment: Unheated Untreated
Birefringence : 0.021-0.033
Crystallography : Orthorhombic
Dispersion : weak
Luster : Vitreous
Hardness : 6-6.5
Refractive index : 1.611-1.665
Specific gravity : 2.80-3.00
COMMENTS :
No indications of heating, no indications of any other treatment
FIND THE ONLINE CERTIFICATE HERE
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