Opal
Lightning Ridge Semi-Black Opal Pear in Red to Blue
This semi-black opal from Lightning Ridge is cut in a pear shape and shows a red-to-blue colour range.
CHF 138,00
| Gemstone | Semi Black Opal |
| Origin | Lightning Ridge |
| Shape | Pear |
| Colour | Red - Blue |
| Size | 7.5x5.5 mm |
| Weight | 0.5 ct |
| Article number | 2252 |
In stock
About Semi-Black Opal
Semi-black opal is a trade description for opal with a noticeably dark grey to charcoal body tone, but not the deepest black body tone used for some black opals. The background may show flashes of blue, green, yellow, orange or red play-of-colour. It is generally opaque to translucent, and its shifting colours arise from light diffraction in regularly arranged silica spheres. Opal is hydrated, non-crystalline silica rather…
Learn more about Semi-Black Opal learn more →