MOHS HARDNESS SCALE
		Wax 0.2, Graphite 0.5-0.9
1	TALC	Soapstone 1, Lead 1.5, Tin 1.5-1.8, Alabaster 1.7
2	GYPSUM	Halite (Rock Salt 2, Magnesium 2.0, Aluminum 2-2.4, Amber 2-2.5, Galena 2.5, Copper 2.5-3, Gold 2.5-3, Mica 2.8
3	CALCITE	Limestone 3, Boric Acid 3, Barite 3.3, Brass 3-4, Marble 3-4, Serpentine 3-4, Dolomite 3.5-4
4	FLUORITE	Bell Metal 4, Iron 4-5, Platinum 4.3, Soda (soft) Glass 4.5, Glass 4.8-6.6, Opal 4-6
5	APATITE	Asbestos 5, Manganese 5.0, Steel 5-5.5, Hornblende 5.5, Stainless Steel 5.5-6.3
6	ORTHOCLASE	Feldspar 6, Hematite 6, Magnetite 6, Pumice 6, Pyrite 6.3, Agate 6.5-7, Garnet 6.5-7.5
7	QUARTZ	Flint 7, Silicon 7.0, Tourmaline 7.3, Emery 7-9, Beryl 7.8
8	TOPAZ	Case Hardened File Steel 7.8-8.5
9	CORUNDUM	Alundum 9+, Chromium 9.0, Carborundum 9.3, Boron 9.5
10	DIAMOND