CA Mining recruits for all phases of the mining process from exploration through to mine closure, and pride ourselves on our professional and ethical practices, with a high regard for candidate confidentiality. If you are a preferred candidate, we will contact you and only send your CV to clients with your consent. Below are all the commodities that CA Mining vacancies are concerned with….
Bauxite is a clay-like mineral, consisting of aluminium oxides and aluminium hydroxides. Bauxite is used as an abrasive and catalyst. It is formed by the chemical weathering of rocks in tropical climates. Primary ore of aluminium is commonly contaminated with compounds of iron, which give it a red colour.
Coal is a fossil fuel which is the largest source of energy for the generation of electricity globally, as well as one of the largest worldwide anthropogenic sources of carbon dioxide emissions. Coal originates from the massive build-up of dead land-based plant life, primarily trees.
Cobalt is a fairly rare magnetic element with properties comparable to iron and nickel. The greatest production of cobalt entails the metallic form used in the formation of cobalt super alloys. Its presence has also been spotted in the sun and in meteoric iron. Cobalt occurs in nature primarily as arsenides, oxides, and sulphides.
Copper is a chemical element with the symbol Cu and atomic number 29. It is a pliable metal with very high thermal and electrical conductivity. Pure copper is relatively soft and flexible, and a newly exposed surface has a pinkish or peachy colour.
Diamonds are entirely made of Carbon atoms crystallised in a cubic (isometric) arrangement. Most natural diamonds are formed at high-pressure high-temperature environments existing at depths of 140 to 190 kilometers (87 to 120 miles) in the Earth mantle. Diamond deposits are termed Kimberlites, Pipes or Blue Ground.
Ferrous metals are metals which have iron and small amounts of additional metals or other elements added, to give the required properties. All ferrous metals are magnetic and provide little resistance to corrosion. Ferrous metals may have small amounts of other elements such as carbon or nickel, in detailed proportions, which are added to achieve the desired properties.
Fluorspar is also identified by the mineral name fluorite. Fluorspar (fluorite) is calcium fluoride. It originates in a variety of geologic surroundings. Fluorspar is found in granite (igneous rock), it fills cracks and holes in sandstone, and it is found in large deposits of limestone (sedimentary rock). The term fluorspar, when used as a product name, also refers to calcium fluoride formed as a by-product of industrial processes.
Gold is formed as the result of molten rock, called magma, being interrupted into solid rock. Gold is soft, shiny, dense and the most pliable and malleable pure metal in existence. It is a chemical element with the symbol Au and an atomic number of 79. The metal occurs as nuggets or grains in rocks, in veins and in alluvial deposits. Chemically, gold is a transition metal and can form trivalent and univalent cations in solutions. Compared to other metals, pure gold is chemically least reactive.
Iron Ore are rocks and minerals from which metallic iron can be frugally extracted. The ores are generally rich in iron oxides and differ in colour from dark grey, bright yellow, deep purple, to rusty red. The iron itself is usually found in the form of magnetite, hematite, goethite, limonite or siderite Hematite is also known as natural ore.
Limestone is a very popular sedimentary rock of biochemical origin. It is composed primarily of the mineral calcite. Occasionally it is almost pure calcite, but most limestone is filled with lots of additional minerals and sand which result in the term dirty limestone.
Is a solid brittle grey polyvalent metallic element that is not magnetic and it resembles iron. It is used in making steel and occurs in numerous minerals. Manganese is designated by the symbol Mn and has the atomic number 25. It is found as a trace mineral that is described as a free element in nature (often in combination with iron), and in many minerals.
Nickel is a silvery-white lustrous metal with a slight golden shade. It is one of the four ferromagnetic elements that exist around room temperature. Its most vital ore minerals are laterites, including limonite and garnierite, and pentlandite. Enzymes of certain life-forms contain nickel as an active center,making the metal a necessary nutrient for those life forms.
It is an inorganic chemical and is a salt of phosphoric acid. In organic chemistry, a phosphate, or organophosphate, is an ester of phosphoric acid. Organic phosphates are essential in biochemistry and biogeochemistry or ecology. Inorganic phosphates are mined to obtain phosphorus for use in agriculture and industry.
Platinum is a chemical element with the chemical symbol Pt and an atomic number of 78. Its name is derived from the Spanish term platina, which is literally translated into “little silver”. Platinum has six naturally occurring isotopes and is one of the rarest elements in the Earth’s crust.
Potash is the popular name for potassium carbonate and different mined and produced salts that contain the element potassium in water-soluble form. In some rare cases, potash can be formed with traces of organic materials such as plant remains. Potash refers to potassium compounds and potassium-bearing materials.
A white, soft, lustrous transition metal, it has the highest electrical conductivity of any element and the highest thermal conductivity of any metal. It is a metallic chemical element with the chemical symbol Ag and atomic number 47. The metal exists naturally in its pure, free form as an alloy with gold and other metals.
Tantalum is a chemical element with atomic number 73 and the symbol Ta. Tantalum is a rare, hard, blue-grey, lustrous transition metal and is highly corrosion resistant, existing naturally in the mineral tantalite, always together with the chemically similar niobium. It is part of the refractory metals group, which are commonly used as minor component in alloys.
It is a chief group metal in group 14 of the periodic table. Tin is a chemical element with the symbol Sn and atomic number 50. Tin is found mainly from the mineral cassiterite, where it exists as tin dioxide.
Occasionally called the “space age metal”, Titanium has a low density and is a lustrous, strong, corrosion-resistant transition metal with a silver shade. It is a chemical element with the symbol Ti and atomic number 22. The element exists within a number of mineral deposits, mainly rutile and limonite, which are usually distributed in the Earth’s crust.
A steel-grey metal in normal conditions when not combined. Tungsten is obtained naturally on Earth only combined in chemical compounds. Also called wolfram and is a chemical element with the chemical symbol W and atomic number 74.
Uranium is a silvery-white metallic chemical element in the actinide series of the periodic table with atomic number 92. It is assigned the chemical symbol U. Its density is about 70% higher than that of lead, but not as dense as gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water.
It is a silvery grey, ductile, soft, transition metal. The development of an oxide layer stabilizes the metal against oxidation. Vanadium is the chemical element with the symbol V and atomic number 23. The element exists naturally in about 65 various minerals and in fossil fuel deposits.
It is in some cases chemically similar to magnesium. Zinc is also known as spelter and is a metallic chemical element. It has the symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table. The greatest exploited zinc ore is sphalerite, a zinc sulphide. Zinc production consists of froth flotation of the ore, roasting, and final extraction using electricity (electro winning).