19.60 carat Lightning Ridge doublet free form - top grade with thick layer of crystal on top n1 black opal
Large doublet opal from the Lightning Ridge fields, thick layer of blue and green crystal on black opal
- Mine - Lightning Ridge Doublet
- Body Tone - N1 crystal top
- Brightness - 4/5
- Fire colour - Blue Green
- Size - 20x19x6.5mm
- Weight - 19.60 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.