A Mohs Hardness Test Kit is a tool set of picks allowing you to obtain a qualitative relativity for the hardness of the minerals or rocks you are testing.
Just hold the pick in your hand and place it on the mineral you would like to test. Apply some pressure, drag the pick’s point across the surface of the mineral/rock specimen. Whether the marker leave a scratch, slide without scratching, or leave a trail of metal behind will determine its relative hardness.
The Mohs Hardness Test Kit includes eight points – for Mohs hardness scale of 2, 3, 4, 5, 6, 7, 8 and 9. The 2 is a plastic point, the 3 is a copper point, the others are alloys carefully selected to match the hardness of the Mohs index minerals.