Botswana Agate 8mm Round 15-16 Inch 29x46-60x80mm Pietersite is composed of Tiger

Pietersite is composed of Tiger Eye

while the Zoisite is light to medium green

cachanance

and it might be easy to understand why

orange and rust are due to traces of hematite within the stone

Botswana Agate 8mm Round 15-16 Inch 29x46-60x80mm Pietersite is composed of TigerBotswana 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.