Mining

Mica is a type of mineral that occurs as flakes, books, or sheets. It is mined. They are mined using techniques that extract mica from the metamorphic rock called schist, from placer deposits, and from pegmatites.

Free milling ore refers to gold or silver ore that can be easily extracted and processed using standard mining methods without the need for additional processing or chemicals to separate the precious metals from the host rock. This type of ore is usually high in grade and easier to extract, resulting in lower production costs for miners.

Quicksilver, also known as mercury, is not derived from an ore but is a naturally occurring element found in cinnabar deposits, which is a mineral form of mercury sulfide. Mercury is typically extracted from cinnabar through a process known as roasting, which converts cinnabar into elemental mercury gas.

Uranium is not so plentiful; one day the reserves will be exhausted.

Applications of uranium:

- nuclear fuel for nuclear power reactors

- explosive for nuclear weapons

- material for armors and projectiles

- catalyst

- additive for glasses and ceramics (to obtain beautiful green colors)

- toner in photography

- mordant for textiles

- shielding material (depleted uranium)

- ballast

- and other minor applications

The ore is mixed with other substances to form a mixture called a slag. This slag is then melted to separate the useful metal from other elements present in the ore through a process called smelting. The impurities in the ore combine with the slag, allowing the pure metal to be extracted.

"Ore" is the singular form and refers to a naturally occurring material from which minerals can be extracted, typically metal ores. "Ores" is the plural form of "ore," indicating multiple sources of mineral deposits.

Igneous intrusions are often associated with valuable mineral deposits such as gold, copper, and nickel due to the process of fractional crystallization where minerals concentrate as magma cools and solidifies. These valuable minerals may be trapped within the intrusive bodies or found in surrounding rocks affected by the intrusion.

At time mercury was used to extract metallic gold from gold ore. The ore was crushed to powder, and washed over a copper sheet covered in mercury. The gold would combine with the mercury, and be recovered by distilling the mercury. This was very dangerous due to the poisonous nature of mercury- and it only captured about 15% of the gold. It is no longer used in gold mining.

Uniaxial Comprehensive Strength or UCS refers to the strength of a rock or soil sample when crushed in one direction without lateral restraint. The UCS of dolomite is 100-250 MPa.

Marine science is the study of oceans and ocean biota. To the extent off shore oil drilling platforms have an effect on oceans and ocean life, marine science might incorporate that. For the most part, oil mining is considered a geologic science.

The USA has approximately 3% of the world's uranium reserves.

Ore is first mined from the earth and then undergoes a process called smelting, where the ore is heated to extreme temperatures to extract the metal from the rock or mineral. The extracted metal is then further refined and processed to achieve desired purity and properties, before it is finally shaped into the desired form, such as bars, sheets, or wires.

By-products of producing metals through mining include waste rock, tailings (which is the finely ground rock leftover after valuable minerals are extracted), and various pollutants such as heavy metals and sulfides that can be released into the environment if not properly managed. Efforts are made to minimize these by-products and their environmental impact through regulations and sustainable mining practices.

Gold IS recycled- it is too expensive NOT to recycle. But please remember- recycling does NOT create new material of any kind. If you want MORE of a thing, recycling does not provide that. Example- you are graduating from school, and want a gold class ring. Perhaps your grandfather's class ring could be recycled, to make your ring. But where will your brother and sister get THEIR rings? You need additional gold- and that comes from mining.

Aragonite is a common carbonate mineral that is a polymorph of calcite. It is classified as a member of the aragonite group and belonging to the class of carbonates.

Indonesia accounts for about 25 percent of the world's nickel ore production.

Common impurities found in iron ore include silica, alumina, phosphorus, and sulfur. These impurities can affect the quality of the iron produced during the smelting process and need to be minimized through various beneficiation techniques.

Slag in mining refers to the waste or byproduct that is produced during the extraction or processing of metal ores. It typically consists of a mixture of impurities, such as gangue minerals and unwanted components, that are separated from the desired metal or mineral. Slag is often deposited in tailings ponds or waste piles.

Miners used dynamite to blast through rock and soil to reach mineral deposits underground. Dynamite allowed miners to efficiently remove large amounts of material in mining operations.

Mica has a vitreous to pearly luster, which means it appears shiny like glass and has a somewhat reflective quality due to its layered structure. This luster is caused by the reflection of light off the mineral's smooth, flat surfaces.

A property of an ore is that it contains a valuable or useful material that can be mined and extracted profitably.

Hematite is a common mineral used as an ore of iron. It has a high iron content and is often processed to extract the iron for industrial use.

Composition and texture are effective tools for determining types of rocks. Through the composition, a person can discover the environment from which the rock comes from. For example, a rock composed of cooled magma can be telling of the processes that created it. The texture is often decided by analyzing the grain size, which can show how quickly molten material cooled.

The finished product of iron ore is iron, which is typically further processed into various forms such as pig iron, cast iron, or steel. These materials are used in a wide range of industries, including construction, manufacturing, and transportation.