Botswana Agate 10mm Round - Large Hole Beads Viking’s Compass and the chatoyancy of the

and the chatoyancy of the tiger's eye can make it a very attractive stone on its own

Rhyolite has a non to crystalline composition similar to granite but with a smaller grain size

and peridot

Sardonyx is sometimes treated to bring out its reddish tones

Botswana Agate 10mm Round - Large Hole Beads Viking’s Compass and the chatoyancy of theBotswana Agate displays highly defined parallel banding, usually in white on hues of brown, gray, pink, tan, apricot and purplish red. Botswana Agate was formed nearly 187 million years ago by lava flowing in waves from long faults in the earth. This lava rolled across the landscape, depositing layer upon layer of Quartz silicate to create the banding and patterns now prized in Botswana Agate.