FA-LSAG024OR-001-018

Natural Gems Belgium Colored Stone Certification FA-LSAG024OR-001-018

IDENTIFICATION : Natural orangy red orange and silky white Lake Superior Agate - 77.57 ct - oval Cabochon - unheated

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

DESCRIPTION

Shape & Cutting Style : Oval, cabochon, polished both sides
Measurements : 39.6 x 28.1 x 8.3 mm
Carat Weight : 77.57 Carat
Color : Orange, orangy red, silky white and orangy yellow lines 
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 checked = in margin
Specific gravity : 2.60-2.64 checked

COMMENTS :

No indications of heating

Personal Note From Natural Gems Belgium:

This oval shaped cabochon has fair to good polish grade, fair to good symmetry, and has a nice natural variation of orangy red, orange and silky orangy white in curved lines.