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
I J K L M N O P
| Gemstone | Hardness |
|---|---|
| Jadeite | 6 ½ -7 |
| Jasper | 6 ½ -7 |
| Jeremejevite | 6 ½ -7 ½ |
| Kornerupine | 6 ½ -7 |
| Kunzite | 6 ½ -7 |
| Labradorite | 6-6 ½ |
| Lawsonite | 6 |
| Magnesio-Axinite | 6 ½ |
| Mangan-Axinite | 6 ½ -7 |
| Marcasite | 6-6 ½ |
| Melonite | 1½-2 |
| Microcline | 6-6 ½ |
| Moissanite, Synthetic | 9½ |
| Nambulite | 6 ½ |
| Nephrite | 6-6 ½ |
| Norbergite | 6-6 ½ |
| Oligoclase | 6-6 ½ |
| Orthoclase | 6-6 ½ |
| Painite | 7½-8 |
| Palyygorskite | 1-2 |
| Peridot | 6 ½ -7 |
| Petalite | 6-6 ½ |
| Phenakite | 7½-8 |
| Pollucite | 6 ½ -7 |
| Povondraite | 7 |
| Precious Beryl | 7½-8 |
| Prehnite | 6-6 ½ |
| Pumpellyite | 6 |
| Pyrite | 6-6 ½ |
| Pyrolusite | 6-7 |
| Pyrope | 7-7 ½ |
| Pyrophyllite | 1-2 |
