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.
A beautiful desk or bookshelf accessory for the reading fanatic in your family!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Great reference card for chemistry and physics students.
Get one of the craziest and coolest kaleidoscopes around!
Build over 60 projects with this deluxe version of the Snap Rover kit!
Build 14 assorted solar robots, some of which can travel over water!