"Freeze-Dried Specimens"

Pure translucent to white, rhombic cleavages, Mohs’ hardness of 3.

Nearly pure, green crystalline forsterite.

Brown, earthy, massive; used for yellow pigment.

Bundle and save on these cosmic wonders.

Light pink, massive, crystalline, translucent.

Deep blue, massive, with nepheline; key feldspathoid.

Perfect for Independent Study or Class Tests.

The Most Abundant Minerals in the Earth’s Crust

Geometric Shapes and Structures of Crystalline Minerals.

Give Your Students a Lesson in Economics as Well as Geology