Chrysocolla, or hydrated copper silicate, is used as a minor ore of copper, an ornamental stone and specimens for collectors with it’s unique blue-green colors. Chrysocolla is found in copper rich ore bodies. It is sometimes found agatized, and swirled with sparkling crystals. Can be mistaken for turquoise.
This high-quality specimen is approx 2-3 inches big! Great for classroom or science project use.
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Build a model green house and 9 other green energy-related devices with this great kit!
This plant and animal cell model activity set is a must-have resource for the science classroom!
This magic bird defies gravity before your very eyes!
See the solar system in action!
This genuine meteorite is great for the rock collector in your family!