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One of the factors used to identify minerals is their hardness which is how well they resist being scratched by a harder mineral. When a mineral is scratched, the bonds between atoms are broken. This kit provides you with all the necessary tools to identify minerals bases on their hardness. Included are: Talc Selenite Calcite Flourite Apatite Microcline Quartz Topaz Corundum Porcelain Streak Plate Copper strip Bar magnet Glass Plate Click the checkout tab to check this item out.

Mineral Hardness kit