FA-BOAG024GR-001-011

Natural Gems Belgium Colored Stone Certification FA-BOAG024GR-001-011

IDENTIFICATION : Natural gray and red Botswana Agate - 18.13 ct - round Cabochon - unheated

Species : Natural Chalcedony (a cryptocrystalline form of quartz)
Variety : Agate

DESCRIPTION

Shape & Cutting Style : Round, cabochon, polished both sides
Measurements : 20.8 x 20.8 x 4.9 mm
Carat Weight : 18.13 Carat
Color : Brownish red, reddish grey, reddish white 
Clarity : N/A
Transparency : Semi-Translucent

Birefringence : Up to 0.004
Crystallography : Hexagonal (trigonal)
Dispersion : None
Luster : Waxy
Hardness : 6.5-7
Refractive index : 1.530-1.543
Specific gravity : 2.60-2.64

COMMENTS :

No indications of heating

Personal Note From Natural Gems Belgium:

This round shaped cabochon has poor polish grade, fair symmetry, and has a nice natural variation of Brownish red, reddish grey, reddish white tones in v-shaped lines. Very nice pattern, fair color