| Iodargyrite | |
| Category: | Halide minerals |
| Formula: | AgI |
| Imasymbol: | Iag[1] |
| Strunz: | 3.AA.10 |
| System: | Hexagonal |
| Class: | Dihexagonal pyramidal (6mm) H-M symbol: (6mm) |
| Symmetry: | P6mm |
| Unit Cell: | a = 4.59, c = 7.51 [Å]; Z = 2 |
| Color: | Colorless (fresh); pale yellow, yellow, greenish yellow, brownish, grayish |
| Mohs: | – 2 |
| Luster: | Adamantine, resinous |
| Streak: | Yellow (shining) |
| Diaphaneity: | Transparent, translucent |
| Gravity: | 5.69 |
| Opticalprop: | Uniaxial (+) |
| Refractive: | nω = 2.210 nε = 2.220 |
| Birefringence: | δ = 0.010 |
| References: | [2] [3] |
Iodyrite or iodargyrite is a natural mineral form of silver iodide.
Related minerals are chlorargyrite and bromargyrite.