Natural brownish reddish grey and orangy red Botswana Agate - 15.40 ct - cushion - crystal structure centered
Unique in its color and composition, the Botswana Agate boasts a stunning blend of natural brown, reddish, grey, and orangy red hues. With a crystal structure centered around its captivating features, this clear-cut cushion gemstone weighs in at 15.40 carats.
Natural Gems Belgium Colored Stone Certification FA-BOAG024GR-001-026
IDENTIFICATION
Species : Natural Chalcedony (a cryptocrystalline form of quartz)
Variety : Agate
DESCRIPTION
Shape & Cutting Style : Cushion, cabochon, polished both sides
Measurements : 19.6 x 19.4 x 4.1 mm
Carat Weight : 15.40 Carat
Color : brownish red , reddish orange
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
crystal stucture in center, going to the edge
Personal Note From Natural Gems Belgium:
This cushion shaped cabochon has fair to good polish grade. fair symmetry, and has good color, the centered crystal structure is nice for optical view, though an be sensitive for damage.
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
