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| | Gemmology, how does it work ? |
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Gemmology, how does it work ?
A few explanations on Gemmology
Scale of Mohs
(Hardness)
| Hardness (Mohs) |
Mineral (Type) |
Hardness (real) |
In % (real) |
| 1 |
Talk (1) |
0,03 |
100% |
| 2 |
Gypse (2) |
1,25 |
4.167% |
| 3 |
Calcite (3) |
4,5 |
15.000% |
| 4 |
Fluorite (4) |
5 |
16.667% |
<| 5 |
Apatite (5) |
6,5 |
21.667% |
| 6 |
Orthose (feldspath) (6) |
37 |
123.333% |
| 7 |
Quartz (7) |
120 |
400.000% |
| 8 |
Topaz (8) |
175 |
583.333% |
| 9 |
Corindon (9) |
1.000 |
3.333.333% |
| 10 |
Diamond (10) |
140.000 |
4.666.666.667% |
This page is made from different sources on Internet and books
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JEWELLERY
Citrine
