Botswana Agate 10mm Round - Large Hole Beads Bicone gray and purple

gray and purple

Boulder Opal is a golden-brown to dark brown stone

Naturally occurring in hues of blue to green to green with spots and streaks of red

they each have a beautiful look and shape

a silicate of calcium and magnesium -- from western Canada

Botswana Agate 10mm Round - Large Hole Beads Bicone gray and purpleBotswana 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.