Botswana Agate 7x8mm Faceted Swirl Oval - 15-16 Inch Blue Ice Glacierite and Canada

and Canada

bubbles and crystal-rich layers that form as lava flows onto the surface of stone —

Its origins are still a mystery with some saying it was from a meteorite impact on earth and others believing it was an asteroid burning up in the atmosphere

It is a particularly unusual gem because it exhibits a special optical property known as tenebrescence

Botswana Agate 7x8mm Faceted Swirl Oval - 15-16 Inch Blue Ice Glacierite and CanadaBotswana 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.