"gel box"

Pure, bright yellow, Frasch sulfur.

Dark brown to black; polycrystalline zinc ore.

Cut black mica cleavage sheets.

Good grade, bronze-colored ore, massive.

Iron oxide-hydroxide mineral; reddish brown to black color; crystal habit ranges from massive to acicular.

Clear, euhedral points and sections.

Demonstrates Irregular Breakage

Our Most Popular collection.

Basic Set of Natural Crystals

Clear examples of a key method of identification.

Hardened natural cement of calcium carbonate that binds other material such as gravel, sand, clay, and silt.

This economic collectors' set features eight different genuine meteorites and impactities.

Specimens Illustrate Smooth Mineral Breakage

Examples of Different Types of Surface Appearance

A fascinating and colorful classroom mineral study set.

This economic collectors set features 12 different genuine meteorites and impactities.