| Name | Carnelian |
| Class | Semi-precious |
| Category | Microcrystalline quartz (Chalcedony) |
| Crystal system | Rhombohedral |
| Chemical composition | Silicon dioxide (SiO₂), presence of iron oxides giving the reddish-orange color |
| Hardness (Mohs scale) | 6.5 to 7 |
| Transparency | Translucent |
| Geographical origin | India, Brazil, Uruguay, Madagascar, United States |






















































































































































































































