| Measured on a scale of -
|
Specific Gravity 1-20
|
Hardness 1-10
|
| Arsenopyrite |
6 - 6.2 |
5.5 - 6 |
| Calcite |
2.7 |
2.5 - 3 |
| Chalcopyrite |
4.1 - 4.3 |
3.5 - 4 |
| Chromite |
4.6 |
5.5 |
| Cinnabar |
8.10 |
2.5 |
| Copper |
8.9 |
2.5 - 3 |
| Diamond |
3.5
|
10.0
|
| Epidote |
3.3 - 3.6 |
6 - 7 |
| Feldspar |
2.4 - 2.8 |
5.5 - 6.5 |
| Galena (Lead) |
7.4 - 7.6 |
2.5 |
| Garnet |
3.5 - 4.3 |
6.5 - 7.5 |
| Gold |
15.6 - 19.3 (19.3 when pure) |
2.5 - 3 |
| Graphite (Pencil Lead) |
2.2
|
2.0
|
| Hematite (Iron) |
4.9 - 5.3 |
5 - 6.5 |
| Ilemenite |
4.5 - 4.7 |
5 - 6 |
| Lead |
11.3 |
1 - 2 |
| Limonite |
2.7 - 4.3 |
4 - 5.5 |
| Magnetite (Iron) |
4.9 - 5.2 |
5.5 - 6.5 |
| Marcasite |
4.89 |
6 - 6.5 |
| Mercury (Quicksilver) |
13.6 |
liquid |
| Mica |
2.7 - 3.4 |
2 - 3 |
| Monazite |
4.6 - 5.4 |
5 - 5.5 |
| Olivine |
3.2 - 4.3 |
6.5 - 7 |
| Platinum |
14 - 19 |
4 - 4.5 |
| Platinum (Refined) |
20.0
|
4.5
|
| Pyrite |
4.9 - 5.2 |
6 - 6.5 |
| Pyroxene |
3.2 - 3.9 |
5 - 7 |
| Quartz |
2.65 |
7 |
| Rutile |
4.2 - 4.3 |
6 - 6.5 |
| Scheelite |
5.9 - 6.1 |
4.5 - 5 |
| Silver |
10 - 12 (10.5 when pure) |
2.5 - 3 |
| Tourmaline |
3.0 - 3.25 |
7 - 7.5 |
| Turquoise |
2.6
|
5.5
|
| Wolframite |
7.0 - 7.5 |
4 - 4.5 |
| Zircon |
4.6 - 4.7 |
7.5 |
|