Mining

Iron ore is not normally smelted, instead it is reduced in a blast furnace with a mixture of coke & limestone. The coke burns removing the oxygen from the iron ore and melting the resulting iron. The limestone neutralizes acidic sulfur compounds and acts as a flux.

Any acid is capacble of dissolving granite, though the rate of which it is dissolved depends upon the "strength" of the acid. The "strength" of an acid can be measured commnly by pH. So an acid with a pH of 6 will take a long time to disolve the granite, whereas an acid with a pH of 1 will take a much shorter time.

Olivine is mined in various countries around the world, including the United States, Norway, Finland, and India. Some of the major olivine mining locations include Hawaii (forsterite-rich olivine), Norway (fayalite-rich olivine), and Finland. These regions have significant deposits of olivine due to their geological history and processes.

Aside from being the material in your lead pencils, graphite is of tremendous value as an industrial material. It is used to make the brushes for electric motors and generators, and it has wide use as an electrode in a number of applications, primarily batteries (like the "AA" or "AAA" cells in your remote control).

Certainly steel-making and other foundry uses demand considerable production of this refractory material. It also finds application in lubricants, brake lining materials and such. And now we demand the extremely strong and light graphite fabric components that often are termed carbon fiber. The future for this material is continuing to open up.

Graphite has been, is, and will continue to be critically important to maintaining and advancing modern civilization. And this because it is in things we use every day, and because it is used in industrial processes that provide the foundation we build our society on.

You may want to surf on over to the Wikipedia article on graphite and skim the short and easy-to-read section about the uses of this material. Will a link help? You'll find one just below this answer.

In the rock cycle, rocks undergo continuous transformation through processes like weathering, erosion, deposition, and metamorphism. Igneous rocks can be weathered and eroded into sediment, which can then be compacted and cemented to form sedimentary rocks. These rocks can be subjected to heat and pressure to become metamorphic rocks, which can then melt and cool to form new igneous rocks, completing the cycle.

A stone used in jewelry typically undergoes processes such as cutting, shaping, polishing, and setting. After being cut into the desired shape and size, it is polished to enhance its luster and shine. Finally, it is securely set into the jewelry piece using techniques like prong setting or bezel setting.

Yes, New Mexico is one of the top uranium-producing states in the U.S., but it does not produce half of the nation's uranium. In recent years, New Mexico has accounted for about 10-15% of total U.S. uranium production.

Metal ores are used for extracting metals through processes like smelting and refining. These metals are then used in a wide range of applications, such as construction, manufacturing, electronics, transportation, and energy production. Some common metal ores include iron ore, copper ore, and aluminum ore.

Surface mining is a type of mining method where minerals or ores are extracted from the earth's surface using machinery and equipment. This method is used when the mineral deposits are found close to the surface, making it more cost-effective and efficient compared to underground mining. Surface mining can include open-pit mining, strip mining, and quarrying.

No, calcite and calcium are not the same. Calcite is a mineral composed of calcium carbonate, while calcium is a chemical element with the symbol Ca and atomic number 20. Calcium is a key nutrient that plays a crucial role in the human body, while calcite is a common mineral found in the earth's crust.

In India chalcedony is found in various states.e.g It begins from rajasthan and M.P border.Then in M.P,Maharashtra,chattisgarh,upto Tamilnadu in the south.It is not mined in India it is found only on the surface of land scattered here and there. Gujrat was also a source but most of it is worked out.(iqbal hasan)

There isn't much for examples of fools gold in everyday items that you have in your house. About the only thing i can think of besides looking at a piece of fools gold in pictures on the internet or at a local rock shop or museum would be to crumple some tinfoil up and color it a dark gold. Where you see the small, almost square patterns in the tinfoil is a bit like fools gold.

Iron Pyrite, this minerals metalic luster and pale brass-yellow hue have earned it the the nickname "fools gold" because of its resemblance to gold.

Sand is primarily composed of silicon dioxide (SiO2), which is the main component of most minerals that make up sand. Other elements commonly found in sand include aluminum, iron, calcium, and various trace minerals.

Metals are typically extracted from ores through processes such as smelting and refining. First, the ore is mined and sorted to extract the metal-bearing materials. Then, it undergoes processing to remove impurities and isolate the desired metal, which can involve heating, chemical reactions, and electrolysis. Finally, the metal is further purified and shaped into its final form for commercial use.

Because diamonds surface through eruptions of volcanic pipes from deep within the earth's mantle, the mined area around the pipe begins as a circle around the pipe and expands exponentially as the mine grows downward.

Diamonds are mined with heavy equipment that digs up shovel-fulls of earth and deposits them in large truck beds, which are then driven to sorting areas where the diamonds are separated from the earth that contains them.

The process of separating a metal from its ore typically involves crushing the ore into small pieces, then using a combination of heat, chemicals, and physical processes to extract the metal. Common methods for separation include smelting, leaching, and electrolysis, depending on the type of metal and ore.

• Hardness: The ability of a mineral to resist scratching or abrasion.
• Cleavage: The way a mineral breaks along planes of weakness.
• Luster: The way light is reflected off the surface of a mineral.

Gold may be associated with PGE's and chalcophilic elements (Fe, Ni, Cu) that form at the base of magma bodies due to immiscible liquid separation resulting from sulphur oversaturated melts that precipitate out as droplets as temperature decreases, bonding with these elements and settling out due to their high specific gravity (4.5) to coalesce at the base of the melt. It can also be deposited in cracks and fissures by the action of hot ground water. Gold (as well as other elements) in tiny particles is carried in the hot water through the fissures building up into the deposits we find today. A good reference to the genesis of gold can be found in Gold by R.W. Boyle; published by Van Nostrand Reinhold New York.

lol wow whoever asked this question i hav a feeling ur doing the crossword for Elements of the Periodic table too. 19-iron

Carbonates are minerals composed of the carbonate ion (CO3^2-) combined with various metal ions. They form inorganic compounds that are commonly found in sedimentary rocks and are essential to the formation of limestone and marble. Examples include calcite, aragonite, and dolomite.

Mining coal is a physical change because the act of extracting coal from the earth does not alter its chemical composition. The coal remains chemically the same before and after the mining process.

1. Mining involves extracting ore from the earth's crust.
2. Smelting involves heating the ore to high temperatures to extract the desired mineral or element.
3. Refining further purifies the extracted material to remove impurities and produce a usable product.

The most important aluminum ore is bauxite. It is the primary source of aluminum and is mined in various regions around the world, including Australia, Guinea, and Brazil.

Iron is usually separated from its ores through a process called smelting, which involves heating the ore with a reducing agent such as coke. This process removes the oxygen from the ore, leaving behind the pure iron metal. The impurities in the ore combine with the flux to form a slag that is then removed.