This hardness pick set allows you to test gemstones and minerals with confidence.
This hardness pick set allows you to test the hardness of gems and minerals to aid in identification or guide in lapidary and carving activities. Points are made of alloys equal to 2 through 9 on the Moh's hardness scale. Includes 4 double-ended picks with 8 points, glass hardness plate (5.5 hardness), second hardness plate (3.5 hardness), 100 grit sharpening stone, streak plate, magnet, 300-mineral hardness table, and complete instructions. Warning: Scratches to minerals will be permanent. Only use on test samples of minerals or inconspicuous areas.