Alphabetical
Gemstone List
Click
on a letter for a list of gems:
A| B| C| D| E| F| G| H| I| J| K| L| M| N| O| P| Q| R| S| T|U| V| W| X|Y |Z
Gemstones that begin
with the letter "B"
Gemstone |
Crystal
System |
Density |
Hardness |
Refractive
index |
Treatments |
Bastnasite
|
hexagonal |
4.95-5.0 |
4.0-5.0 |
1.717-1.818 |
none |
Benitoite
|
hexagonal |
3.64 |
6.0-6.5 |
1.757-1.804 |
none |
Beryl
|
hexagonal |
2.72 |
7.5-8.9 |
1.577-1.583 |
heat, radiation, fracture filling, oiling |
Bloodstone
|
microcrystalline |
2.60 |
6.5-7.0 |
1.535-1.539 |
none |
Bixbite
|
hexagonal |
2.66 |
7.5-8.0 |
1.567-1.572 |
none |
Brazillianite
|
monoclinic |
2.97 |
5.5 |
1.602-1.621 |
none |