| Xanthiosite | |
| Category: | Arsenate mineral |
| Formula: | Ni3(AsO4)2 |
| Imasymbol: | Xth[1] |
| Molweight: | 453.91 g/mol |
| Strunz: | 8.AB.25 |
| System: | Monoclinic |
| Class: | Prismatic (2/m) (same H-M symbol) |
| Symmetry: | P21/a |
| Color: | Golden yellow |
| Mohs: | 4 |
| Gravity: | 5.37–5.47 |
| Diaphaneity: | Translucent |
| References: | [2] [3] |
Xanthiosite is an arsenate mineral first discovered in Germany in 1858; it may also be found in Greece. It is not radioactive.