"Freeze-Dried Specimens"

Shiny crystal clusters and crystalline groups, this 'fools gold' is brassy and leaves a black streak.

Substantial Set of Economically Important Minerals

Fluorite is Green Halide mineral with moh's hardness 4.

Sale

Brazil.

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

A classroom set that covers the major types of coal.

Crystals and crystal sections up to 1", Mohs’ hardness of 9.

White, fine, massive, opaque to slightly translucent.

Red, classic oolitic texture.

Pure, white, earthy “China clay”.

Cleaned, pure, bright, metallic native copper.

Synthetic, iridescent skeletal crystal, average size 1".