"Properties Testing"

Great for geology hardness tests.

Compact Size for Your Shirt Pocket

Measure Angles Between Crystal Faces

Measure the Specific Gravity of Gemstones and Minerals with Ease

This magnet is just what you need for testing suspected space rocks in the lab or field.

Comprehensive, Economical Test Kit.

This remarkable little scale is sturdy and easy to use.

Without Glued-On Grains That Wear Off, Chart Stands up to Repeated use.

These plates help you determine the hardness of unknown minerals in the field.

Identify Minerals with This Convenient Kit