Home > Silver Minerals – October 23 > MS1014 Chlorargyrite with Iodargyrite

Chlorargyrite with Iodargyrite - Sold


Chlorargyrite is a binary compound of silver and chlorine. The mineral name comes from the Greek words for chlorine and silver. Similarly, iodargyrite is a binary compound of silver and iodine, and its names comes from the Greek for those two elements. Prior & Spencer (1902) provide a history of the name and some interesting chemical comparisons. Chlorargyrite is cubic, with the rock salt crystal structure, whereas iodargyrite is hexagonal with the wurtzite crystal structure. This spongy black matrix consists of the manganese oxide; its openness allowed for the growth of yellow-green cubo-octahedral chlorargyrite crystals to 2 mm and complex skeletal pale yellow iodargyrite crystals to 4 mm to form. An interesting ore sample.