Botswana Red Agate 8mm Round - Large Hole Beads Slab igneous rock with high silica

igneous rock with high silica content

or man-made) have variations in colors and patterns

Diamonds actually form at high temperatures and pressures that occur in Earth's mantle about 100 miles below Earth's surface

although sometimes mistaken for Jasper

and is a result of trace amounts of copper or chromium

Botswana Red Agate 8mm Round - Large Hole Beads Slab igneous rock with high silicaBotswana 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.