| Name | Ruby Zoisite |
| Class | Silicates |
| Category | Metamorphic mineral |
| Crystal system | Orthorhombic (Zoisite) + Trigonal (Ruby) |
| Chemical composition | Ca₂Al₃(SiO₄)(Si₂O₇)O(OH) (Zoisite) with corundum inclusions (Al₂O₃ – Ruby) |
| Hardness (Mohs scale) | 6 to 7 (depending on the ruby proportion) |
| Transparency | Opaque to translucent |
| Geographical origin | Tanzania, India |






















































































































































































































