Lightning Ridge Oval Rub Opal 5.90crts - EO-012
 
Lightning Ridge rub of opal with a bright red, blue and green fire pattern and a low dome.  Will cut a great ring or pendant stone.  Little sand in the face to dela with and a small flaw on one edge to cut away.  Back of the stone needs work.
 
Source - Lightning Ridge
Size - 18x14x3.5mm
Weight - 5.90 crts
Base Tone - N8
Fire Colour - Red, Blue and green
Brightness - 4/5
 
About Opals
 
Lustre: 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.