Zoisite
| Name | Zoisite |
| Chemical Formula | Ca2Al3(SiO4)3(OH) |
| Mohs Hardness | 6 - 6.5 |
| Density | 3.30 |
| Streak | White |
| Luster | Vitreous |
| Refractive Index | 1.69 - 1.70 |
| Color | Colourless, purple, greyish-white, grey, yellowish-brown, yellow, pink, green |
| Gem Types | Tanzanite |
