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hydrothermal creation method
but proportions
lobster clasp
blue Treatments / Enhancements none Mohs Hardness 7 SKU Number #785
The Gemstone: Pearl
13.90ct Koroit Boulder Matrix Opal | #E262 Fossils hydrothermal creation methodKoroit Boulder Matrix Opal Your browser does not support the video tag. Weight 13. 90 carats Origin Koroit Mining District, Queensland, Australia Shape Oval Cabochon Dimensions (millimeters) 19. 20mm x 11. 90mm x 6. 30mm thick Dimensions (inches) 0. 76" x 0. 47" x 0. 25" thick Body Tone (+N1 to N9 ) N A Boulder Opal Brightness ( 1 to 5+) B1. 50 Predominant Colors Green and blues with faint pinkish red and orange pinfire Directionality of Fire Slightly
