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What is NOT an example of an ore? A. hematite B. limestone ...

What is NOT an example of an ore? A. hematite B. limestone C. magnetite D. chalcopyrite 2 See answers Answer 5.0 /5 3. cowan122300 +5 rosariomividaa3 and 5 others learned from this answer Limestone is not an example of an ore. It is a sedimentary rock. The answer is B. 5.0 3 votes 3 votes Rate! Rate! Thanks

Ore - Wikipedia

Ore is a deposit in Earth's crust of one or more valuable minerals. The most valuable ore deposits contain metals crucial to industry and trade, like copper, gold, and iron.. Copper ore is mined for a variety of industrial uses. Copper, an excellent conductor of electricity, is used as electrical wire.Copper is also used in construction.

Unit 1 Reading: What are Mineral Resources and What Makes ...

For example, the chlorine (Cl) and sodium (Na) atoms in the mineral halite are arranged in cubes and these cubes repeat throughout the mineral (see Figure 1 above). Please note: the "minerals" in a bottle of vitamins and minerals are not real minerals (according to our definition).

Environmental Science CH15 Flashcards | Quizlet

ores contain a large concentration of a particular mineral; a rock may or may not be an ore 38) Dematerialization refers to: a decrease in the weight of products over time

Study 45 Terms | Chap. 5 ES 1000 Flashcards | Quizlet

Example of submarine hydrothermal ore deposit. Gold is denser than any other mineral. In a placer deposit, gold settles out first when the stream current slows down b/c: ... Can increase b/c new and inexpensive methods of processing lower grade ore can be developed and can become profitable if the price of the metal in a mineral deposit increases.

Common & Basic Formulas for Mineral Processing Calculations

Example: A mill in closed circuit with a classifier receives 300 dry tons of crude ore per day, and the percentages of solid are respectively 25, 50, and 84% in the classifier overflow, feed to classifier, and sand, equivalent to L: S ratios of 3.0, 1.0, and 0.190. Then the circulating load ratio equals

Which of these is ALWAYS a property of an ore? A ... - eNotes

An ore is rock that contains valuable minerals in concentrations that can be economically extracted so C is the correct answer. Ores are mined from the earth, crushed and refined to produce ...

Iron ore - Wikipedia

Lower-grade sources of iron ore generally require beneficiation, using techniques like crushing, milling, gravity or heavy media separation, screening, and silica froth flotation to improve the concentration of the ore and remove impurities. The results, high-quality fine ore powders, are known as fines. Magnetite. Magnetite is magnetic, and hence easily separated from the gangue minerals and ...

What is Primary Economic Activity? | Definition, Meaning ...

Primary Economic Activity Example. Company P is engaged in the mining and extraction of iron ore from mines in the state of Minnesota. The company uses a combination of technology and manpower to perform this activity.

What is NOT an example of an ore? A. hematite B. limestone ...

What is NOT an example of an ore? A. hematite B. limestone C. magnetite D. chalcopyrite Get the answers you need, now!

What Is a Metal Ore?

Metal Ore. Metal ore is a type of rock from which metal can be extracted. Metal ores are normally oxides; for example, aluminium is the most common metal in the Earth's crust, but in order to get as pure aluminium as possible, it needs to be extracted from an ore.

Ore deposit | geology | Britannica

An ore deposit, in its simplest terms, is a portion of the Earth's crust from which some industrial raw material can be extracted at a profit. As such, its characteristics are as much economic as geochemical.

smelting | Definition & Facts | Britannica

In modern ore treatment, various preliminary steps are usually carried out before smelting in order to concentrate the metal ore as much as possible. In the smelting process a metal that is combined with oxygen —for example, iron oxide—is heated to a high temperature, and the oxide is caused to combine with the carbon in the fuel, escaping ...

Ore Minerals : What are Ore Minerals? | Geology Page

Metal ores are generally oxides, sulfides, silicates, or native metals (such as native copper) not commonly concentrated in the crust of the Earth, or noble metals (normally not forming compounds) such as gold.To remove the elements of interest from the waste material and the ore …

Ore - Wikipedia

Ore is natural rock or sediment that contains one or more valuable minerals, typically metals, that can be mined, treated and sold at a profit.Ore is extracted from the earth through mining and treated or refined, often via smelting, to extract the valuable metals or minerals.. The grade of ore refers to the concentration of the desired material it contains.

What are the differences between minerals and ores? - Quora

Ore : * Materials which contains sufficient quantity of minerals so that metals can be extracted profitably. * Ore contains a good percentage of metal. * There are no objectionable impurities. * All ores are minerals. Example : Zinc blende is an o...

Mineral Resources

An ore deposit will consist of ore minerals, that contain the valuable substance. Gangue minerals are minerals that occur in the deposit but do not contain the valuable substance. Since economics is what controls the grade or concentration of the substance in a deposit that makes the deposit profitable to mine, different substances require ...

Unit 3 Reading: Mining and Mining Impacts

Although not all ore bodies outcrop at the surface, some will. It is very important to determine not only the surface location (outcrop) of an ore body but also to figure out the size, depth, and orientation (trend) of the deposit. By just looking at the surface outcrop, it is impossible to tell the size and shape of the underground ore body.


Point to note: In the event, you can demonstrate exempt person status, this does not lead to automatic registration and does not "exempt" you from the ORE. It gives you the option of applying under the route of an individual assessment in addition to applying for the ORE. Start Applying for ORE.

Sulfur Ore | Article about Sulfur Ore by The Free Dictionary

Sulfur Ore any of the natural mineral formations containing native sulfur in concentrations that make extraction technically feasible and economically profitable. Sulfur ores are classified according to the composition of the enclosing rock and include limestone-calcite (more than 90 percent of world production), calcitic dolomite, clay, gypsum, opalite ...

What is Ore? - Definition, Types, Uses & Examples - Video ...

An ore is a special type of rock that contains a large enough amount of a particular mineral (usually a metal) to make it economically practical to extract that mineral from the surrounding rock ...

Different Types of Iron Ore - Mineral Processing & Metallurgy

Hematite is sometimes found in vein-like deposits which are not usually large enough to be important. Such ore-bodies have been found near Kitchener, B.C. and in the Matachewan area, Ontario. Deposits of considerable size have been found at the contacts of igneous intrusions, generally basic, with crystalline limestone, dolomite, and limey shale; the ore is usually of the specular variety, and ...

Classification of Mineral Deposits | Geology for Investors

Jul 29, 2013· Geologists, are known to have more opinions than economists, so it should come as no surprise that the classification of mineral deposits, is an on-going hot topic. The details will be debated until the sun cools, but the broad-brush classification of mineral deposits is generally understood.

Ore Forming Minerals: Metallic & Non-metallic Minerals

Ore Forming Minerals: Metallic & Non-Metallic Minerals . Certain kinds of mineral can be treated for metal extraction more easily than others; these are commonly referred to as ore minerals.Quite often, different minerals containing a particular metal occur together in a deposit, and are referred to as ore forming minerals. Ore minerals form as a result of special geologic processes and often ...

What Are Some Examples of Ores? |

Examples of ores include aluminum, copper, clay and sodium. An ore is a naturally occurring mineral, rock or metal that can be mined in sufficient amounts to sell for a profit. Ores can also be a natural product that can be used as a source of a nonmetal. Other examples of ores include gold, magnesium, silver, tin, scandium and beryl.

Reduction Definition and Examples in Chemistry

Another example is the reaction that extracts iron from iron ore: Fe 2 O 3 + 3CO → 2Fe + 3 CO 2 The iron oxide undergoes reduction (loses oxygen) to form iron while the carbon monoxide is oxidized (gains oxygen) to form carbon dioxide.

Ore minerals

Some primary "ore" may contain up to 200 ppm. Ga. Germanium - A byproduct of zinc ore processing. Also a deposit in China is associated with coal. Gold - The primary mineral of gold is the native metal and electrum (a gold-silver alloy). Some tellurides are also important ore minerals such as calaverite, sylvanite, and petzite.

Ore Body - an overview | ScienceDirect Topics

Suppose that an ore body with electronic conductivity is surrounded by sedimentary rock whose conductivity is dominated by ions in its water-filled pores, and that part of the body extends above the water table. The surface of the ore body below the water table is a boundary between media with different mechanisms of conductivity (electronic and ionic), and a natural electrochemical reaction ...

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