Sulfur will be obtained from pyrites, then gypsum or anhydrite. A form of iron pyrites (iron sulphur compound) was also reported present. Resources&colon; Petroleum, copper, natural gas, pyrites, nickel, iron ore, zinc, lead, fish, lumber, hydropower. Discolorations can result from mineral impurities such as pyrites or barium carbonates. In addition to copper pyrites, brown iron ore was also found in the mine. Kamchatka's natural resources include coal, gold, mica, pyrites, and natural gas. Specimens of gold were found in town, and iron and copper pyrites in veins. Vast quantities of iron pyrites (FeS) were burnt in the town. Iron pyrites were discovered by local villagers in 1882 in Matsuo village. The presence of pyrites presents two additional risk factors, the first involving oxidation. The local slate contains pyrites or "fool's gold". He took the rock home and figured it was full of "pyrites". She was carrying a cargo of pyrites. In 1889 the mine was acquired by the Pyrites Company Ltd. of England. At Easington in 1951 blunt picks hit a patch of pyrites and generated sparks.