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Moh's Mineral Hardness / Scratch Test (Updated)

Moh's Mineral Hardness / Scratch Test

Moh's Mineral Hardness / Scratch Test
Minerals In Decreasing Hardness :
Diamond 10
Corundum 9
Chrysoberyl 8.5
Topaz 8
Beryl 7.5 to 8
Spinel 7.5 to 8
Zircon 7.5
Cordierite 7 to 7.5
Staurolite 7 to 7.5
Tourmaline 7 to 7.5
Quartz 7
Garnet 6.5 to 7.5
Jadeite 6.5 to 7
Sillimanite 6.5 to 7.5
Olivine 6.5 to 7
Spodumene 6.5 to 7
Marcasite 6 to 7.5
Cassiterite 6 to 7
Epidote 6 to 7
Zoisite 6 to 7
Nephrite 6 to 6.5
Orthoclase 6 to 6.5
Plagioclase 6 to 6.5
Prehnite 6 to 6.5
Pyrite 6 to 6.5
Rutile 6 to 6.5
Diopside 5.5 to 6.5
Rhodonite 5.5 to 6.5
Arsenopyrite 5.5 to 6
Augite 5.5 to 6
Chromite 5.5 to 6
Hematite 5.5 to 6.5
Nepheline 5.5 to 6
Sodalite 5.5 to 6
Magnetite 5 to 6.5
Enstatite 5 to 6
Hornblende 5 to 6
Ilmenite 5 to 6
Turquoise 5 to 6
Uraninite 5 to 6
Monazite 5 to 5.5
Titanite 5 to 5.5
Apatite 5
Wollastonite 4.5 to 5.5
Kyanite 4.5 to 7
Fluorite 4
Magnesite 3.5 to 5
Pyrrhotite 3.5 to 4.5
Siderite 3.5 to 4.5
Azurite 3.5 to 4
Chalcopyrite 3.5 to 4
Cuprite 3.5 to 4
Dolomite 3.5 to 4
Malachite 3.5 to 4
Rhodochrosite 3.5 to 4
Sphalerite 3.5 to 4
Serpentine 3 to 5
Anhydrite 3 to 3.5
Witherite 3 to 3.5
Bornite 3 to 3.25
Calcite 3
Barite 2.5 to 3.5
Biotite 2.5 to 3
Chalcocite 2.5 to 3
Copper 2.5 to 3
Gold 2.5 to 3
Silver 2.5 to 3
Galena 2.5+
Muscovite 2 to 3
Chlorite 2 to 2.5
Cinnabar 2 to 2.5
Halite 2 to 2.5
Glauconite 2
Sylvite 2
Sulfur 1.5 to 2.5
Gypsum 1.5 to 2
Limonite 1 to 5
Bauxite 1 to 3
Graphite 1 to 2
Molybdenite 1 to 2
Pyrophyllite 1 to 2
Talc 1

Mohs Hardness of Common Objects :
fingernail 2 to 2.5
copper 3
nail 4
glass 5.5
knife blade 5 to 6.5
steel file 6.5
streak plate 6.5 to 7
quartz 7




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