| Property | Aventurine | Carnelian |
|---|---|---|
| Category | Semi-Precious Gems | Semi-Precious Gems |
| Primary Color | various | red |
| Mohs Hardness | 7.0–6.5 | 6.5–7.0 |
| Specific Gravity | 2.64 | 2.58 |
| Refractive Index | 1.544 | 1.535 |
| Crystal System | Triclinic | Trigonal |
| Luster | — | Waxy,Resinous |
| Chemical Formula | — | — |
| Price Tier | Moderate ($50-500/ct) | Moderate ($50-500/ct) |
| Daily Wear | Yes | No |