Lightning Ridge Black Rectangle Opal 0.40crts - Eo-978
 
Lightning Ridge black rectangle cut opal with a flat dome.  Body has a bright blocky blue & green fire pattern.
 
Ideal ring or pendant stone.
 
Mine - Lightning Ridge
Body Tone - N2
Brightness - 4/5
Fire colour - Green Blue
Size - 6x5x1.7mm
Weight - 0.4 carats
 
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.