Cameroon Local Miners

gemstone, any of various minerals highly prized for beauty, durability, and rarity. A few noncrystalline materials of organic origin (e.g., pearl, red

native crystalline carbon that is the hardest known mineral, that is usually nearly colorless, that when transparent and free from flaws is highly val

Elemental or metallic mercury isa shiny, silver-white metal, historically referred to as quicksilver, and is liquid at room temperature. It is used in

Scrap metal is bits and pieces of metal parts (e.g., ) bars, turnings, rods, sheets, wire) or metal pieces that may be combined together with bolts or

Petroleum, also called crude oil, isa naturally occurring liquid found beneath the earth's surface that can be refined into fuel. A fossil fuel, p

The cathode isthe basic product of copper production. It is produced in a marketable form atAurubisfor use in high-quality applications. A cathode a

Animal feed isfood given to domestic animals, especially livestock, in the course of animal husbandry. There are two basic types: fodder and forage. U

Gasoline isa fuel made from crude oil and other petroleum liquids. Gasoline is mainly used in vehicle engines. Petroleum refineries and blending facil

Gold ismetallic, with a yellow colour when in a mass, but when finely divided it may be black, ruby, or purple. It is the most malleable and ductile m

Gold ismetallic, with a yellow colour when in a mass, but when finely divided it may be black, ruby, or purple. It is the most malleable and ductile m

Gold ismetallic, with a yellow colour when in a mass, but when finely divided it may be black, ruby, or purple. It is the most malleable and ductile m

Iron ore isa mineral substance which, when heated in the presence of a reductant, will yield metallic iron (Fe). It almost always consists of iron oxi

Bauxite is a naturally occurring, heterogeneous material composed primarily of one or more aluminum hydroxide minerals, plus various mixtures of silic

What is urea Urea isthe chief nitrogenous end product of the metabolic breakdown of proteins in all mammals and some fishes. It occurs not only in th

Kerosene, or paraffin, is a combustible hydrocarbon liquid which is derived from petroleum. It is widely used as a fuel in aviation as well as househo

Charcoal isa lightweight black carbon residue produced by strongly heating wood (or other animal and plant materials) in minimal oxygen to remove all

Natural rubber isobtained from latex, a milky liquid present in either the latex vessels (ducts) or in the cells of rubber-producing plants. Around 20

A ruby isa pinkish red to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). Ruby is one of the most popular traditional

Californium is aradioactive metal. Californium is a very strong neutron emitter. It is used in portable metal detectors, for identifying gold and silv