11.70 carat Allens Rise Oval opal Blue and green fire
 
Very cool split fire colour faced opal from the Allens Rise mines. Cut oval with a low dome, half the fae is blue which blends into a green pattern with hints of orange.
 
Mine - Allens Rise - Australia
Body Tone - N6
Brightness - 4
Fire colour - Blue Green hints of orange
Size - 21x18x5mm
Weight - 11.70 carats
 
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.