Shandite

Shandite is a sulfide mineral with chemical formula: Ni₃Pb₂S₂. It was discovered in 1950 and named after Scottish petrologist, Samuel James Shand (1882–1957). It is characterized by a metallic luster and a brass-yellow color. It has a specific gravity of 8.92, and a Mohs hardness value of 4. Shandite is commonly found as an inclusion in other minerals such as serpentine.