40.40 carat Lightning Ridge Rub Rough Opal - EO-273
 
Stunning rub from Lighting Ridge with multi red fire lines, will cut a few large top quality stones.
 
Source - Lightning Ridge
Size - 27x22x18mm
Weight - 40.40 crts
Base Tone - N6 crystal
Fire Colour - Red Green Blue
Brightness - 4.5/5
 
Price is for the stone pictured
 
About Opals from around the world - 
 
Treatment: Natural
Colours Opal Can Be: Black, White, Blue, Green, Red, Yellow, Pink, Grey, Purple, Orange, Brown
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 dimensions 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 safty on the water.
 
All orders are sent recorded delivery UK and International.