menu

Home » Gemstones » Opal » Pinfire Opal

Pinfire Opal also known as Pinpoint Opal


Pictures of beautiful pinfire opals


pinfire opals

Pinfire opals: 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.

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.






More Gemstones
  100+ Gems
  Ruby and Sapphire
  Diamond
  Gifts that Rock!
  Amethyst
  Emerald
  Pictures of Opal
  Geology of Gems

geology store

More From Geology.com:


lapis lazuli
Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history.
gem photos
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
rock tumblers
Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler.
Crater of Diamonds
You Can Be A Diamond Miner! At the Crater of Diamonds Mine you keep what you find.
US Gemstones
United States Gemstones: A diversity of gemstones are produced in the United States.
Topaz
Topaz is a popular birthstone and the #8 mineral in the Mohs Hardness Scale.
Sunstone: Copper inclusions give this feldspar an aventurescent flash.
How the Hawaiian Islands Formed
How the Hawaiian Islands Formed - The power of a moving plate over a stationary hot spot.