Botswana Agate 6mm Round - 8-Inch Size_20mm They are all varieties of

They are all varieties of the mineral corundum

also known as Prase

Impression Jasper comes in a variety of colors and possibly more names

These Muonionalusta Meteorite beads

Natural wood beads have markings and color unique to their species

Botswana Agate 6mm Round - 8-Inch Size_20mm They are all varieties ofBotswana 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.