Other important minerals include silver, coal, gypsum, and sulphur.
Other minerals found in the veinlets include apatite, goyazite, and pyrite.
Other minerals include marble, granite, iron, and aluminum.
Industry was based by mining, main minerals included copper, iron ore, gold, coal and salt.
These minerals included gold, silver, copper and more and brought a rush of people into the area.
Particular minerals that can be used include green rust, magnetite, pyrite, and glauconite.
Other minerals included iron ore, zinc, lead and mercury.
Important minerals include gold, coal, salt and small amounts of petroleum.
Other proven minerals include marble, mica, garnets, limestone and asbestos.
Secondary minerals that can be seen include green malachite and blue-green chrysocolla.