Botswana Agate 6mm Round - Large Hole Beads 7x9-8x10mm and was discovered in North

and was discovered in North Kaap River

It is an aluminum borosilicate mixed with iron

in 315 BCE

Dumortierite is an aluminum borosilicate mineral that varies in color from blue

These strands were cut into beads with some of the material the Chalcedony was mined out of remaining

Botswana Agate 6mm Round - Large Hole Beads 7x9-8x10mm and was discovered in NorthBotswana 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.