Stannite is a mineral, a sulfide , iron.
The chemical formula Cu 4. Zinc may be present. of tin, consisting of approximately 28% tin, 13% iron, 30% copper, 30% sulfur vein , sphalerite , arsenopyrite, and wolframite
It is also known as bell metal ore as tin is an important constituent of bell-metal. It is thought the exploitation of tin deposits in Cornwall led to an expansion in bell founding.
The name comes from the Latin for tin: stannum. It was first described in 1797 for an occurrence in Wheal Rock, St. Agnes, Cornwall