Our deluxe hardness set includes four double ended picks with eight points (2 though 9 on the Mohs hardness scale), as well as a glass hardness plate (5.5 hardness), a second hardness plate (3.5 hardness), a 100 grit sharpening stone, a streak plate, a magnet, a hardness table for 300 minerals, and complete instructions. Warning: Scratches to minerals will be permanent. Use only on test samples of your minerals or on inconspicuous areas.
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