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Mining

Mining for coal is something that is widely known, but did you know that diamonds, uranium, copper, and other non-renewable natural resources are also mined? There are two types of mining; surface and subsurface. Questions about the methods and types of mining, what ores are mined, and related questions should be asked in this category.

4,677 Questions

What is malachite?

Malichite is a a green copper carbonate mineral with the formula Cu2CO3(OH)2.

What comes after Fel Iron in regards to mining in World of Warcraft?

I believe it's "Khorium" or "Adamantite", both rare nodes found around Outland and The Isle of Quel Danas.

What information can you find about the Webley British Fuse Igniter Pistol?

The official name for this interesting piece is "Pistol, Safety Fuse". They were issued to the Royal Engineers & also to the Royal Navy in Great Britain. They were designed to ignite fuse for exploding land mines, blasting and the type of demolition work carried out by Army sappers (engineers). They were produced from around 1875 to at least 1915 and they were also made for commercial use. They main body is of bronze or brass with various components of steel. On the military ones, belt hooks are found on either side. Some or all were silver plated. Commercially produced ones of certain periods do not have any obvious maker's names or marks. The beauty of this tool is that it is completely silver plated (possibly for corrosion resistance) . This odd device was produced either in a government small arms factory or by Webley's. Apparently they could be used to ignite either instantaneous or safety fuses. It utilized a short brass, rimmed cartridge (rim diameter 10.8mm, length 9.5mm). It was utilized by inserting about 5" of fuse into the barrel and then tightening the barrel sleeve which forced a collet to grip the end of the fuse. A special blank cartridge was loaded into the breech which was then swung closed. The hammer (firing pin ) was actuated just like a regular single-action pistol. It is theorized that this ignition pistol was carried in a special holster worn across the users chest. The configuration of the mechanisms on it seems to support this. This positioning would protect the fuse igniter from mine shaft walls, etc.

What is a surveillance audit?

A survelliance audit is a process where current procedures are checked and verified against the company's quality management system.

What rocks hold heat?

Two noteworthy forms of weathering caused by extremes of weather conditions are:

  • Freeze-thaw weathering:
    • There is a natural fault/crack/bedding plane in the rock
    • Water enters the crack
    • Overnight, the water freezes and expands
    • The expansion widens the crack, prying the rock apart, breaking it up.
  • Ex-foliation:
    • There is an outcrop of rock in an environment with a large diurnal range (i.e. a large temperature difference between day and night)
    • During the day, the out-most layer of the rock expands more than the rest of the rock
    • At night the out-most layer shrinks more than the rest of the rock
    • Over time, the rock is weakened by constantly adapting in the heat, and eventually fragments to an extent that it just falls off.

What are the advantages disadvantages of investing in gold?

The primary advantage of owning gold is that there is no counter party risk to the value of your investment. Gold has been a store of value since ancient times and this is not likely to change. By contrast, an investor in bonds or stocks could lose their entire investment if a company goes bankrupt. Despite the fact that gold can fluctuate in value, it is almost impossible to imagine a scenario when gold would have no value. The disadvantages of gold is that it is a sterile investment in terms of producing income. An investor holding physical gold will only see a gain in value if the price of gold increases. Many investors who purchase gold believe that it is a safe alternative to paper currency backed investments since over time many currencies have failed or the value of the currency has declined dramatically due to inflation. For a more detailed explanation, please see my article on "How To Invest In Gold" (http://investing.answers.com/types-of-investments/how-to-invest-in-gold).

How long does 63 to 99 mining take if you auto iron ore in runescape?

If you auto, you'll probably never reach level 99. You'll be caught before that, and lose your account.

What are some problems with mining iron ore?

if you don't have a pix axe you can buy it, if you have one keep training until your mining level becomes 15 and you can mine iron ore

What are research topics on data mining or database?

please give me research topic from database and more information

Do you think mining is important for south africa?

Very, its plays a large role in the South African economy.

Where is Pyrite Cave in Pokemon Colosseum?

Pyrite Cave's entrance is on the roof of Miror B's hideout in Pyrite Town. The cave is inside the rocky terrain around Pyrite and it extends below the ground. Miror B can be found in the cave dancing with his Ludicolo.

Is pyrite soluble?

Well, usually when you ask that question, you specify what solvent to which you are referring. e.g. "Is pyrite soluble in toluene?" I will assume what you mean is "Is pyrite soluble in water?" as water is the universal solvent. And the answer is no

Why are copper mines reopened?

This happens when the price of copper goes up enough to make it profitable again to work the mine.

What is allele mining?

searching of gene..... or theallele of a gene which has some significant effect

How does Beryl form?

Beryl is exclusively of a pegmatite mineral. When this pegmatite magma has a rich source of beryllium, the beryl crystals are formed. They are formed in high temperature veins by these beryllium bearing gas content.

Did mining take place in the medieval times?

Mining for minerals has taken place as far back as 3,000 years ago. This is how tin and copper were originally discovered. Also one of the reasons the Romans conquered southern England was to seize the mines.