Natural midnight lace Obsidian - 13.90 ct - cushion cabochon - unheated
"Obsidian is a unique stone, formed naturally by volcanic activity. Its rapid cooling process produces a smooth and lustrous glass alike texture, making it a prized option for jewelry and decorative objects. Plus, it has nice decorative and unique lines making it an attractive gemstone for jewelry.
Natural Gems Belgium Colored Stone Certification FA-LAOB024ML-001-001
IDENTIFICATION
Species : Natural Felsic Lava
Variety : Obsidian
DESCRIPTION
Shape & Cutting Style : Cushion, Cabochon polished both sides
Measurements : 20.4 x 14.9 x 5.4 mm
Carat Weight : 13.90 Carat
Color : Brownish black (lines)
Clarity : comparable to VS1
Transparency : Translucent
Crystallography : Amorphous
Luster : Vitreous
Hardness : 5.5-6
Specific gravity : 2.4
COMMENTS :
No indications of heating, no indications of any other treatment
Personal Note From Natural Gems Belgium:
Obsidian is produced from felsic lava, rich in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. Obsidian is hard, brittle, and amorphous. This specific type is known as midnight lace obsidian. Midnight Lace Obsidian is a brand-new type of obsidian gemstones on the world-market and thanks to its fantastic variety of patterns it's also a real eye-catcher.
FIND THE ONLINE CERTIFICATE HERE
For impression take a look at the pictures,
all items are sent insured with track and trace regardless of value
