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

Home » Gemstones » Opal » Pinfire Opal

Pinfire Opal also known as Pinpoint Opal

Pictures of beautiful pinfire opals



What is a Pinfire Opal?



"Pinfire opal" is a name used for opal that has pinpoints of fire throughout the stone. The opal on the left is a pinfire opal cut from material mined at Coober Pedy, Australia. The stone on the right is a pinfire opal from the Constellation Mine in Spencer, Idaho. It is 6 millimeters by 4 millimeters in size. The video below illustrates the "play of color" in a pinfire opal.







Find it on Geology.com




More from Geology.com


gem photos
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
volcanic explosivity index
Volcanic Explosivity: Learn about some of the most explosive volcanic eruptions.
Corundum
Corundum is the third hardest mineral. It is also the mineral of ruby and sapphire.
Gems from Space
Gems from Space A number of materials from space have been used as attractive gems.
Gold
Gold is a valuable metal with extreme properties that give it a diversity of uses.
Ticks
Ticks are a problem for geologists in some areas. Learn to recognize and avoid them.
city satellite images
What City is This? Can you recognize United States cities from satellite images?
Turquoise
Turquoise - A blue to bluish-green gem material that has been used for over 6000 years.


blue common opal from Peru
The opal on the left is a pinfire opal cut from material mined at Coober Pedy, Australia. The stone on the right is a pinfire opal from the Constellation Mine in Spencer, Idaho. It is 6 millimeters by 4 millimeters in size.




More Gemstones
  100+ Gems
  Chatoyant Gems
  Labradorite
  Emerald
  Extraterrestrial Gems
  Pictures of Opal
  Ant Hill Garnets
  Fee Mining

© 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.