Carnelian
| Use attributes for filter ! | |
| Color | Red |
|---|---|
| Orange | |
| Luster | Vitreous |
| Crystal system | Hexagonal crystal system |
| Chemical formula | SiO₂ |
| Hardness (Mohs hardness scale) | 7 |
| Mineral class | Chalcedony |
| Date of Reg. | |
| Date of Upd. | |
| ID | 541954 |
About Carnelian
Carnelian is a brownish-red mineral commonly used as a semi-precious gemstone. Similar to carnelian is sard, which is generally harder and darker. Both carnelian and sard are varieties of the silica mineral chalcedony colored by impurities of iron oxide.