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.







Opal photos Opal Photos
Precious opal Precious Opal
Fire opal Fire Opal
Common opal Common Opal
Black opal Black Opal
Boulder opal Boulder Opal
Opal triplet Assembled Stones



Find it on Geology.com




More from Geology.com


Fluorescent Minerals
Fluorescent Minerals glow with spectacular colors under ultraviolet light.
rocks
Rock Gallery: Photos of igneous, sedimentary and metamorphic rocks with descriptions.
Organic Gems
Organic Gems are gems formed from or by plants or animals. They might also be fossils.
caldera
Calderas are enormous volcanic craters formed by some of Earth\'s largest eruptions.
Iris Agate
Iris Agate produces surprising colors when light passes through its thin bands.
volcanic explosivity index
Volcanic Explosivity: Learn about some of the most explosive volcanic eruptions.
Oil and Gas
Oil and Gas: Articles about oil and natural gas in the US and around the world.
shale gas
Shale Gas is natural gas trapped within shale. It is a growing source of US supply.


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.


Gemstones in the News
$20,000 for a Canary Diamond Found in Arkansas:  Tana Clymer, a 14-year-old from Oklahoma City found...

What is Peanut Wood?:  This material is a petrified wood from Australia...

Spring Mineral Shows:  The-Vug.com has a large list of mineral shows...

The Bunder Diamond Project:  The opening of new diamond mines are rare...

What is Sunstone?:  What happens when minute flakes of copper in...

Organic Gems:  Although most gemstones are mineral materials, a number...

Default on the World Record Diamond?:  In late 2013 Sothbey’s sold a 60 carat...

Chrysoberyl:  Chrysoberyl is an extreme gem. At 8.5 on...

Geology of Diamonds:  An interesting article on “Diamonds and the Geology...

Tucson Gem and Mineral Show Interview:  The Arizona Geological Survey just published a special...

geology news
Daily news delivered to you free by RSS or email.
Go to Geology News! Receive Daily News by Email Subscribe to Geology News Feed


© 2005-2014 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.