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<< Chemical elements data references

number symbol name Mohs hardness Vickers hardness
(GPa)
Brinell hardness
(GPa)
3 Li lithium 0.6
4 Be beryllium 5.5 1.67 0.6
5 B boron 9.5 49
6 C carbon 1.5 (graphite)
6 C carbon 10.0 (diamond)
11 Na sodium 0.5 0.00069
12 Mg magnesium 2.5 0.26
13 Al aluminium 3 0.167 0.245
14 Si silicon 6.5
16 S sulfur 2.0
19 K potassium 0.4 0.000363
20 Ca calcium 1.5 0.167
21 Sc scandium 0.75
22 Ti titanium 6.0 0.97 0.716
23 V vanadium 7.0 0.628 0.628
24 Cr chromium 8.5 1.06 1.120
25 Mn manganese 6.0 0.196
26 Fe iron 4.0 0.608 0.49
27 Co cobalt 5.0 1.043 0.7
28 Ni nickel 4.0 0.638 0.7
29 Cu copper 3.0 0.369 0.874
30 Zn zinc 2.5 0.412
31 Ga gallium 1.5 0.06
32 Ge germanium 6.0
33 As arsenic 3.5
34 Se selenium 2.0 0.736
37 Rb rubidium 0.5 0.216
38 Sr strontium 0.5
39 Y yttrium 0.589
40 Zr zirconium 5.0 0.903 0.650
41 Nb niobium 6.0 1.32 0.736
42 Mo molybdenum 5.5 1.53 1.5
44 Ru ruthenium 6.5 2.16
45 Rh rhodium 6.0 1.246 1.1
46 Pd palladium 5.0 0.461 0.0373
47 Ag silver 2.5 0.251 0.0245
48 Cd cadmium 2.0 0.203
49 In indium 1.0 0.00883
50 Sn tin 1.5 0.0051
51 Sb antimony 3.0 0.294
52 Te tellurium 2.0 0.018
55 Cs caesium 0.2 0.00014
56 Ba barium 1.0
57 La lanthanum 2.5 0.491 0.363
58 Ce cerium 2.5 0.27 0.412
59 Pr praseodymium 0.4 0.481
60 Nd neodymium 0.343 0.265
62 Sm samarium 0.412 0.441
63 Eu europium 0.167
64 Gd gadolinium 0.57
65 Tb terbium 0.863 0.677
66 Dy dysprosium 0.54 0.500
67 Ho holmium 0.481 0.746
68 Er erbium 0.589 0.814
69 Tm thulium 0.52 0.471
70 Yb ytterbium 0.206 0.343
71 Lu lutetium 1.16 0.893
72 Hf hafnium 5.5 1.76 1.7
73 Ta tantalum 6.5 0.873 0.8
74 W tungsten 7.5 3.43 2.57
75 Re rhenium 7.0 2.45 1.32
76 Os osmium 7.0 3.92
77 Ir iridium 1.76 1.67
78 Pt platinum 3.5 0.549 0.392
79 Au gold 2.5 0.216 0.245
81 Tl thallium 1.0 0.0264
82 Pb lead 1.5 0.0383
83 Bi bismuth 2.5 0.0942
90 Th thorium 3.0 0.35 0.4
92 U uranium 6.0 1.96 2.4

References

As quoted at http://www.webelements.com/ from this source:

  • G.V. Samsonov (Ed.) in Handbook of the physicochemical properties of the elements, IFI-Plenum, New York, USA, 1968.
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