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.
Gold
Gold - An important metal for thousands of years - uses, prospecting, mining, production.
Yosemite Rock Fall Photos
Yosemite Rock Fall Photos: A photo sequence of a rockfall and debris avalanche by Herb Dunn.
Titan Submarine
Exploring a Hydrocarbon Sea on Titan with a submarine is a potential NASA mission.
Diamonds from Coal
Biggest Misconception: Lots of people think that diamonds form from coal. Not True!
Topaz
Topaz is a popular birthstone and the #8 mineral in the Mohs Hardness Scale.
caldera
Calderas are enormous volcanic craters formed by some of Earth\'s largest eruptions.
Methane Hydrate
Methane Hydrate deposits contain more fuel value than all other fossil fuels combined.


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
  Extraterrestrial Gems
  100+ Gems
  Pictures of Opal
  Ruby and Sapphire
  United States Gemstones
  Emerald
  Diamond
  Lapis Lazuli

© 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.