This large chunk of Amazonite, 2-3 inches in diameter, is great for any mineral collection.
FOUND IN: BRAZIL, MADAGASCAR & COLORADO USA
This semi-opaque blue-green variety of feldspar is named after the Amazon River. Its bright green color comes from small quantities of lead and water in the feldspar. When polished, Amazonite is sometimes cut and used as a gemstone, although it is easily fractured.
Build a model green house and 9 other green energy-related devices with this great kit!
This microscope is so versatile you can even take it with you on a job site!
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!
Exciting magnet exploration for ages 8 and up!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.