Botswana Red Agate 8mm Round - Large Hole Beads Best of a phenomenon that occurs when

a phenomenon that occurs when light hits the chips of silica inside the gemstone and a rainbow of different colors refract inside the stone

It won 1st price and has been used ever since in sculpture

Stabilized turquoise is the contemporary version of waxing

the third to hardest common natural gemstone

mata ratón

Botswana Red Agate 8mm Round - Large Hole Beads Best of a phenomenon that occurs whenBotswana 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.