Info: Zoisite crystalises in long prismatic crystals and is often found badly grown. It has light grey, green-grey, yellowish to red colouration. In some samples of the mineral often the aluminium is suplemented by iron.
How to recognize: Zoisite cannot be dissolved in any acid, when melted in fire it becomes bubling glass matter.
Found: Zoisite is very common mineral. It can be found in Rauris and Saualpe (Austria), in Zermatt and Wallis in Switzerland. Pink crystals named thulite were found in Norway, Greenland, Nambia and Australia
| Crystal structure |
| Rhombical |
| Hardness |
| 6 - 6,5 |
| Color |
| Colourless, white, grey, green, yellow, pink |
| Luster |
| Pearly to glassy |
