2.7   Aluminium
9.8   Bismuth
8.64  Cadmium
14.8  Carbid Metal
3.5   Carbon
7.25  Cast Iron
7.2   Chrome
1.35  Coal
8.9   Cobalt
2     Concrete
8.96  Copper
0.2   Cork
5.1   Ferric Oxide
2.5   Glass
19.3  Gold
2.24  Graphite
2.3   Gypsum
0.92  Ice
7.87  Iron
11.3  Lead
1.74  Magnesium
7.43  Manganese
10.22 Molybdenum
8.91  Nickel
21.5  Platinum
1.05  Polystyrene
2.4   Porcelain
4.4   Selenium
2.33  Silicon
10.5  Silver
0.97  Sodium
7.85  Steel
2.07  Sulfur
16.6  Tantalum
7.29  Tin
4.5   Titanium
19.27 Tungsten
19.1  Uranium
6.12  Vanadium
0.5   Wood
7.13  Zinc








































