quick overview :

Mohs Hardness Kit Specification:- The set includes eight points - for Mohs hardness 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. The set includes:

• Four double ended picks with hardness points of 2-9 on Mohs hardness scale
• A grinding plate for sharpening your points
• Streak plate
• Glass plate for quick "hard" or "soft" determination
• A hardness plate with a hardness of 3.5
• Magnet
• Paper table listing common minerals and their hardness
• Hardness testing instructions
• All of this in a compact (7" x 2 1/2" x 1 5/8") wooden case that takes up minimal space on a desk or shelf.