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.
This quality Dobsonian style telescope features a 76 mm aperture reflector optical tube.
Build your own windmill generator kit by recycling a plastic bottle!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
High-quality green laser pointer projects a green dot up to an incredible 2 miles away.
Learn about detective science through this fun fingerprinting kit!
The Wimshurst Machine is a high quality static machine for student labs.