Image Curve
   Shop for Emeralds
   Encyclopedia Home
   Index of Articles

 

Colombian Emeralds

Secure payments via..

PayPal
Visa MasterCard Discover American Express
Escrow.com: Buy or Sell Online Without the Fear of Fraud

Pegmatite

print
Pegmatite is a very course-grained igneous rock with which emerald is found. Pegmatite consists of a combination of quartz, feldspar, and mica.

Pegmatite is widely distributed across the earth, and is most abundant along mountain chains.

Pegmatite material tends to be very old, with most deposits ranging from 1 to 2 billion years old, with some of the oldest having been formed as long as 3 billion years ago.

However, much younger deposits such as those around India date between 5 and 20 million years old, having formed in the current Cenozoic era.

Economically, pegmatite is a very important material because they so often contain rare gemstones and is the source for many other significant elements such as tin, tungsten, and lithium.

blan

Great Gift Idea
   
Items weight Total
00.00 cts$0.00
   
RSS Wiki