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
Chlorargyrite is the mineral form of silver chloride (AgCl). Chlorargyrite occurs as a secondary mineral phase in the oxidation of silver mineral deposits. It crystallizes in the isometric - hexoctahedral crystal class. Typically massive to colum ...
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.
It was first described in 1859 for an occurrence in Plateros, Zacatecas, Mexi ...
.
References
Halide minerals
Silver minerals
Hexagonal minerals
Minerals in space group 183
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