"Complete Meter Stick Optics Bench"

Clear rhombs showing double refraction.

A Complete Kit to Communicate the Concept of Hardness in Minerals

Ten New Slides in a Complete Teaching Set

This Universal Specific Gravity Kit enables fast and convenient measurement of the specific gravity of gemstones, minerals, and other solid materials. Its user-friendly above-the-scale design allows samples to be weighed in air and underwater without changing the setup.

Own a piece of the Canyon Diablo Meteorite!

Polished, etched iron meteorite slice showing Widmanstatten structure, 1–1 1/2".

Polished banded slices with colorful translucence.

Geometric Shapes and Structures of Crystalline Minerals.