A copper iron tin sulfide, typically steel-grey to black. It's associated with prosperity, intellect, and practical problem-solving. (An ore of tin).
Steel-Grey to Iron-Black, often with a bluish or yellowish tarnish, forms tetrahedral crystals or massive
Stannite is classified as a sulfide mineral mineral which typically crystallizes in the tetragonal system. Its chemical formula is Cu2FeSnS4. Common crystal habits include rarely as pseudo-octahedral crystals also massive, granular, and disseminated.