FA-BOAG024GR-001-016

Natural Gems Belgium Colored Stone Certification FA-BOAG024GR-001-016

IDENTIFICATION : Natural purplish brown and white Botswana Agate - 21.47 ct - pear Cabochon - unique

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

DESCRIPTION

Shape & Cutting Style : Pear, cabochon, polished both sides
Measurements : 28.6 x 18.5 x 4.9 mm
Carat Weight : 21.74 Carat
Color : deep dark brown with purplish brown and 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 pear shaped cabochon has good polish grade, very good symmetry, and has a nice natural variation of centered deep dark brown Brown and purplish brown to white. Very nice and special pattern, very good specific and clear color make it a unique agate cabochon