7.1 carat Mintabie free form opal - OPl033
 
Mintabie Opal with an interesting moon crater like fire pattern.  Red/Pink fire pattern with round dots of area with no fire, like the surface of the moon but flat with no indents.
 
Mine - Mintabie - Aus
Body Tone - N7 
Brightness - 4/5
Fire colour - Red/Pink blue and greens
Size - 20x13x4mm
Weight - 7.10 carat 
 
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.