The chemical formula of mineral Arsenohauchecornite is indicated by Ni18Bi3AsS16. Mineral Arsenohauchecornite is most commonly found occuring in hydrothermal Ni-Co-Cu veins. Mineral Arsenohauchecornite is most commonly found at its type of locality from the Vermillion mine, Sudbury, Ontario, Canada. At Karagaily, central Kazakhstan, USSR. The mineral was named alluding its chemical relation to the hauchecornite group. Mineral Arsenohauchecornite is known to crystallize in the tetragonal system of crystal formation. In optical mineralogy, this tetragonal system comprises crystals having three axes, which are all in a position perpendicular to one another. Two axes are usually found having the same or equal length.Arsenohauchecornite has no cleavage display even if it is evaluated closely under polarizing microscope used in the field of optical mineralogy. Mineral Arsenohauchecornite is usually found colored bronze when viewed closely under polarizing light microscope used in the field of optical mineralogy. The specific gravity measure of mineral Arsenohauchecornite is usually found 6.35 grams per cubic centimeters. Most crystals of mineral Arsenohauchecornite is usually found opaque in appearance. Mineral Arsenohauchecornite is usually found showing conchoidal fracture developed in brittle materials characterized by smoothly curving surfaces. The hardness measure of mineral Arsenohauchecornite when evaluated using Mohs scale method is usually found 5.5. It is also usually found showing metallic luster when viewed closely in reflected light of polarized microscope used in the field of optical mineralogy. Arsenohauchecornite is also commonly found leaving a grayish black streak when rubbed on a white porcelain streak plate. Arsenohauchecornite is a non-radioactive mineral.