Red Botswana Agate 6mm Round - 15-16 Inch 091119-Additions This effect is known as

This effect is known as “labradorescence

Amazonite is named for the Amazon River in Brazil

white and black

Amazonite has a long and illustrious history dating back to Mesopotamia

A Manganese inosilicate (or chain silicate)

Red Botswana Agate 6mm Round - 15-16 Inch 091119-Additions This effect is known asRed Botswana 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.