Lithium, nickel, iron, minerals, milky white quartz, coffee.Mediate between buyers and sellers
Copper ore
lithium: carbonate, lithium salt and pegmatite ore (spodumene, amblygonite, lepidolite)
gold
iron ore and iron ore byproducts (iron rich mud).
manganese ore
nickel ore.
quartz..
Nickel ore, graphite, chromite, feldspar, columbite, tantalite, copper ore.