Iodyrite or iodargyrite is a natural mineral form of

silver iodide Silver iodide is an inorganic compound with the formula Ag I. The compound is a bright yellow solid, but samples almost always contain impurities of metallic silver that give a gray coloration. The silver contamination arises because AgI is hig ...

. Related minerals are chlorargyrite and

bromargyrite Bromyrite or bromargyrite is a natural mineral form of silver bromide found mainly in Mexico and Chile. Hardness is 1.5 to 2. Related are chlorargyrite and iodyrite Iodyrite or iodargyrite is a natural mineral form of silver iodide. Related ...

References

Halide minerals Silver minerals Hexagonal minerals Minerals in space group 183 {{Halide-mineral-stub