mining facts, facts about mining, facts related to mining, interesting facts about mining
Mining is important to our economy, but mostly people dont realize how vital and integrated the mining industry is in our everyday lives! Not all of us are aware of a lot of facts related to mining and resources which are quite interesting to know and to let know. Some of the following facts are quite obvious while the rest are something which we surely are unaware of.
In Pre-Columbian times, indigenous people in North America mined turquoise, jet, opal, copper, silver, coal, obsidian and other igneous rocks, asbestos, salt, and sodium sulfate, as well as other minerals.
Turquoise, jet, opal, copper, and silver were mined mostly for decorative use. Coal was mined for fuel. Obsidian and other igneous rocks were mined to make projectile points, mortars and pestles, grinding stones, stone axes, and other tools. Clay and asbestos were mined for pottery, salt was used as a preservative and for flavoring in foods and sodium sulfate was used as a purgative.
Fools Gold can be one of three minerals-the most common mineral which is always mistaken for gold is pyrite, chalcopyrite also appears gold-like and weathered biotite mica can mimic flake gold which again appears to be like gold.
Until 1886, aluminum was considered a rare metal and a chemical curiosity. Researchers in the U.S. and France independently discovered the continuous electrolytic reduction process which is used to make aluminum metal from bauxite, an aluminum ore.
Shaft mining is very dangerous. Men dig a mine shaft vertically into the earth until they meet a seama place rich in mineral deposits. The miners then dig horizontal shafts to dig out the minerals in the seam. These shafts get very hot and its hard to breathe. Rocks fall and sometimes gas explodes. The deepest shaft mine is the TauTona gold mine in South Africa which is 2.4 miles deep.
Open pit mines are simply big, open holes with terraced sides. Coal, copper and other minerals are dug out of the pits. Very deep pits sometimes hold uranium. Once the minerals or coal is gone, the pits are filled with trash and covered with soil. The biggest open pit mine in the world is the Bingham Canyon copper mine in Utah, which is almost one mile deep.
Quarrying is the process of cutting stone, usually out of a mountainside. Years ago, quarrymen used dynamite or hammers and wedges to split the rock off the mountain. Today, mechanized saws do the work.
A newborn baby will need 800 pounds of lead, 750 pounds of zinc, 1500 pounds of aluminum, 32,700 pounds of iron, 26,550 pounds of clay, 28,213 pounds of salt, 1,238,101 pounds of stone, sand, gravel and cement during its lifetime.
Because of wood shortages in the 1600s, Brewers in England started drying their Malts with heat generated by coal. Unfortunately, coal flavored beer was not a hit. After more experiments, the brewers found that the undesirable gases could be eliminated by heating the coal in an air tight oven. Thus the discovery of the coke making process that has been an essential part in the making of iron and steel.
Zinc is the fourth most widely consumed metal after iron, aluminum and copper and is also vital to the human body for proper function and health. Zinc is needed for the bodys enzymes and immune system.
In ancient times salt was traded for an ounce for gold. Salt was once made into 'coins' and 'cakes' in china and also used as a currency in the Mediterranean regions. Several cultures levied taxes on salt.
Gold is the most ductile (easily molded or shaped) of all metals, allowing it to be drawn out into tiny wires or threads without breaking. As a result, a single ounce of gold can be drawn into a wire five miles long. Gold's malleability is also unparalleled. It can be shaped or extended into extraordinarily thin sheets. For example, one ounce of gold can be hammered into a 100 square foot sheet.
Salts are taken from the ground and purified and end up on your kitchen table. Deposits were formed by the evaporation of large parts of oceans millions of years ago. In these natural formations, also occur calcium carbonate and potash. Underground salt deposits are found all around the world.
Looking at what the nature has to offer, it conveys a lot of information when it comes to things that it holds in it, within it and on it. With need for minerals and its wide spread application getting widened each day, the stint of its very existence is getting blink and its depreciation in its source which is its over usage is on the high.
literally means extraction .Our Mother Earth has lots of resources deep within her and mining is the method of extracting all these valuable resources from the earth through different means.There are different methods to extract these resources which are found in different forms beneath the earth's surface.
The metal mining was one of the traditions that have been passed on meritoriously over the past years so that we meet our day-to-day needs of the desired material usage starting from the equipments that are ornamental as well as purposeful coordination of information's.
Jadeite is a pyroxene mineral and is one of the two types of pure jade. The other is known as nephrite jade. Jadeite is the rarer of the two jades, and as a result, it is considered to be more precious and valuable. Due to its striking and emerald green color it is also known as "imperial jadeite".
Surface mining is basically employed when deposits of commercially viable minerals or rock are found closer to the surface; that is, where overstrain (surface material covering the valuable deposit) is relatively very less or the material of interest is structurally unsuitable for heavy handling or tunneling.
Underground mining is carried out when the rocks, minerals, or precious stones are located at a distance far beneath the ground to be extracted with surface mining. To facilitate the minerals to be taken out of the mine, the miners construct underground rooms to work in.
Gold is a chemical component with the symbol Au that springs up from the Latin derivative aurum that means shining dawn and with the atomic number 79. It is a very sought-after valuable metal which, for many centuries, has been utilized as wealth. The metal resembles as nuggets or grain like structures in rocks, subversive "veins" and in alluvial deposits. It is one of the currency metals.
Platinum, is a heavy, malleable,ductile, highly inactive, silverish-white transition metal. Platinum is a member of group 10 elements of the periodic table.It is one among the scarce elements found in Earth's crust and has six naturally occurring isotopes. It is also achemical element.
Diamonds and supplementary valuable and semi-precious gemstones are excavated from the earth level via 4 main types on mining. These diamond withdrawal methods vary depending on how the minerals are situated within the earth, the steadiness of the material neighboring the preferred mineral, and the nonessential damage done to the surrounding environment.
iron ore: sedimentary rock - pictures, definition & more
Earth's most important iron ore deposits are found in sedimentary rocks. They formed from chemical reactions that combined iron and oxygen in marine and fresh waters. The two most important minerals in these deposits are iron oxides: hematite (Fe2O3) and magnetite (Fe3O4). These iron ores have been mined to produce almost every iron and steel object that we use today - from paper clips to automobiles to the steel beams in skyscrapers.
Banded Iron Formation: Close-up view of a banded iron formation. In this specimen bands of hematite (silver) alternate with bands of jasper (red). This photo spans an area of rock about one foot wide. Photo taken by Andr Karwath, GNU Free Documentation License.
The iron ore deposits began forming when the first organisms capable of photosynthesis began releasing oxygen into the waters. This oxygen immediately combined with the abundant dissolved iron to produce hematite or magnetite.
These minerals deposited on the sea floor in great abundance, forming what are now known as the "banded iron formations." The rocks are "banded" because the iron minerals deposited in alternating bands with silica and sometimes shale. The banding might have resulted from seasonal changes in organism activity.
The primary use of iron ore is in the production of iron. Most of the iron produced is then used to make steel. Steel is used to make automobiles, locomotives, ships, beams used in buildings, furniture, paper clips, tools, reinforcing rods for concrete, bicycles, and thousands of other items. It is the most-used metal by both tonnage and purpose.