Botswana Agate 4mm Round - 15-16 Inch Optimism Sometimes called the "Black Prince's

Sometimes called the "Black Prince's Ruby" for its role in the English crown

“Butter” suggests qualities of smoothness

Naturally beautiful

Spinel is a hard vitreous magnesium aluminum oxide

Botswana Agate 4mm Round - 15-16 Inch Optimism Sometimes called the "Black Prince'sBotswana 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.