Description and information about Dark (Semi-black ) opals from Lightning Ridge Australia:
The Dark Opal or also known as semi-black Opal from Lightning Ridge Australia, is from the same family as black Opal but lighter in the background color, and is usually more affordable than a black Opal. We only consider a body tone between N4 to N7 of the Australian Opal association body tone chart, to be Dark or semi-black Opal. N8 and N9, is considered to be a light Opal. The transparency of the Dark Opal is Opaque and not translucent like a Crystal Opal.
Like all Opals, the Dark Opal has a brightness between B1 to B5, and comes in many different patterns.
Find out more about Brightness and Patterns.
About Lightning Ridge
Lightning Ridge is located on the border of New south wale and Queensland and is the only place in the world where you will find the best quality non hydrophane black Opals.
Read about Lightning Ridge Black Opals - description and information.