This acanthite is from the Imitier Mine in the Imiter Mine in the Imiter District, Tinghir Province, Draa-Tafilalet Region of Morocco.. This is a large silver mine that contains 70 minerals including acanthite. It is a silver sulfide found in the oxidation zones of silver ore deposits and It contains the elements Ag and S. This specimen consists of an arborescent formation of silver-grey acanthite crystals. The crystals range from druse crusts to euhedral crystals. Some of the crystals display skeletal or hoppered growth characteristics. This piece measures 1 1/4 x 13/16 x 5/8 inches or 32 x 20 x 16 mm.