Green and Blue Black Opal, 2.05ct from Lightning Ridge, Australia Size_Huge (5.0 - 9.99ct) Australian Boulder opals from Koroit

Australian Boulder opals from Koroit opal fields can show the most interesting patterns of precious opal in the ironstone matrix

This Australian opal displays beautiful green pinfire pattern with some golden sprinkled in on the side

however it looks uncuttable - there is sand

02mm from Lightning Ridge

41mm from Brazil

Green and Blue Black Opal, 2.05ct from Lightning Ridge, Australia Size_Huge (5.0 - 9.99ct) Australian Boulder opals from KoroitGreen and blue colour on black is a classic of famous Australian Black opal. The triangle shape will be great in a pendant or ring. 2. 05ct, 13. 50x7. 94x3. 38mm, from Lightning Ridge, Australia. Brightness: 2. 5 of 5, slight directionality; Body tone: N2, Black opal. Additional information: Please note that my camera is capturing more blue tones than it's visible with human eye. The green of this opal is rich and warm. *This opal is cut and polished