McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams

Home » Gemstones » Opal » Black Opal

Black Opal: Also Known as Dark Opal


Pictures and video of black opals



What is Black Opal?



"Black opal" is a term used for opal that has a dark body color, often black or dark gray. The term is also used for opal that has a dark blue or dark green body color.

The dark body color often makes the fire of black opal more obvious. This contrast of fire color to body color makes black opals very desirable and sold for high prices.

One of the specimens at right is a solid black opal with a strong blue face-up color play. It was mined at Lightning Ridge, Australia, the "Black Opal Capital of the World". It is 2.46 carats in weight and 9.5 x 12.5 millimeters in size.

The other specimen is a black matrix opal cut from material mined at Andamooka, South Australia. It is a cabochon of about 30 carats.








Find it on Geology.com




More from Geology.com


Mohs Hardness Test
Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing.
US Gemstones
United States Gemstones: A diversity of gemstones are produced in the United States.
Gems from Space
Gems from Space A number of materials from space have been used as attractive gems.
Diamonds from Coal
Biggest Misconception: Lots of people think that diamonds form from coal. Not True!
Mount Vesuvius
Mount Vesuvius: Geology, history, maps, facts and more about Vesuvius Volcano.
What is LNG?
What is LNG? The use of LNG as an energy source is growing rapidly. Learn more about LNG.
hurricane names
How Are Hurricanes Named? Names are assigned as tropical storms are discovered.
Olivine
Olivine is a rock-forming mineral found in the crust, the mantle, and in some meteorites.


Black Opal
A solid black opal cabochone with a strong blue face-up color play. It was mined at Lightning Ridge, Australia, the "Black Opal Capital of the World". It is 2.46 carats in weight and 9.5 x 12.5 millimeters in size.




Andamooka black matrix opal
A black matrix opal cut from material mined at Andamooka, South Australia. It is a cabochon of about 30 carats.


More Gemstones
  100+ Gems
  Rose Quartz
  Emerald
  Ruby and Sapphire
  Pictures of Opal
  Diamond
  Turquoise
  United States Gemstones

© 2005-2015 Geology.com. All Rights Reserved.
Images, code and content of this website are property of Geology.com. Use without permission is prohibited. Pages on this site are protected by Copyscape.