Coober Pedy Clam Fossil Opal 50.55 crt  - Eo-562
 
Stunning top quality clam fossil that has been opalised.  Full of colour polished face with the shell form on the back. 
 
Source - Cobber Pedy
Size - 31x24x15mm
Weight - 50.55 carats
Base Tone - Light
Fire Colour - Red Blue Green
Brightness - 4/5
 
About Opals
 
Luster: Pearly, Vitreous, Opalescence
Birthstone zodiac sign: Libra
Associated month: October
Crystal system: Amorphous solid
Chemical formula: SiO₂·nH₂O
Hardness (Mohs hardness scale): 5.5 – 6.5
Country of origin: Australia, Ethiopia, Mexico and Cornwall amazingly 
Size variations: can vary 0.3mm each way on all dimension given
 
Properties:
 
In mystical circles, opal is considered a stone representing hope, innocence and purity. It has strong connotations of happiness, faithfulness, loyalty and confidence.  Regarded as a powerful sea stone for safety on the water.
 
All orders are sent recorded delivery UK and International.