This large chunk of Moscovite Mica, 2-3 inches in diameter, is great for any mineral collection.
A common rock-forming silicate, generally colorless and ranking No. 4 on the Mohs scale of hardness. It has a variable chemical composition of potassium, magnesium, silicon, and oxygen, with water in its crytalline structure. Large, clear plates of mica where once commonly used for windows, but more often used as an insulator.
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
Comprehensive collection of 30 fossils.
This glass Erlenmeyer mug makes an excellent gift!
The cards show the name of the element, the atomic number, group, natural state and common usages!
Build over 100 exciting electronic projects with this easy to use kit!
This kit will get your paper plane ready for takeoff!