Botswana Agate 4mm Round - 15-16 Inch Optimism Spinel is a hard vitreous

Spinel is a hard vitreous magnesium aluminum oxide

“Butter” suggests qualities of smoothness

Other names include: quickstick

Bloodstone was known in antiquity as Heliotrope

Botswana Agate 4mm Round - 15-16 Inch Optimism Spinel is a hard vitreousBotswana 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.