The largest mineral in the world, how many minerals have been discovered in the world

Nearly 4,000 minerals have been discovered in the world.

Diamond is commonly known as "diamond diamond". It is often referred to as diamond, which is a mineral composed of pure carbon. Diamond is the hardest substance in nature.

Diamond is used in a wide range of applications, such as handicrafts and cutting tools in industry. Carbon can form diamonds at high temperatures and pressures.

Minerals of maximum hardness.

Talc is a hydrothermal alteration mineral. Magnesium-rich minerals often turn into talc by hydrothermal alteration, so talc often presents mineral artifacts such as olivine, enstatite, hornblende, tremolite, etc. Talc is a common silicate mineral that is very soft and has a slippery feel.

There are 10 minerals that have been chosen to represent 10 levels of hardness, called Morse hardness, and the first (and softest) of these 10 levels is talc. Soft talc can be used instead of chalk to draw white marks. Talc is generally lumpy, leaf-like, fibrous or radial, white in color, off-white, and will have various colors due to the presence of other impurities.

Talc has many uses, such as refractory materials, fillers for papermaking and rubber, pesticide absorbents, leather coatings, cosmetic materials and carving materials.

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The world's largest mine is the Mir Diamond Mine Located in the Eastern Siberian region of Russia, the Mir Diamond Mine is the largest man-made crypt in the world, it is about 525 meters deep and the entrance diameter reaches 1200 meters There is no largest mineral.

Four of the most expensive minerals in the world.

There are nearly 4,000 kinds of minerals that have been discovered in the world, among which the hardest mineral is diamond and the smallest is graphite. Minerals are natural compounds with a certain chemical composition, which have stable phase interfaces and crystallization habits. The crystalline form and symmetry of the mineral are determined by the internal crystallization habit.

The hardness, luster and conductive properties of minerals are determined by the nature of chemical bonds. The chemical composition of the mineral and the tightness of the bond determine the color and specific gravity of the mineral.

When it comes to identifying minerals, the morphology and physical properties of minerals are the most commonly used markers for identifying minerals due to their ease of identification. The definition of minerals has evolved many times in the history of science. According to the modern concept, minerals must first be naturally produced objects in order to distinguish them from artificially prepared products.

However, those products that are synthesized and have the same or close similarity in all aspects to naturally occurring minerals, such as synthetic diamonds, artificial crystals, etc., are called synthetic minerals.

Diamonds, also known as diamonds, are minerals named diamonds. The English word diamond is derived from the ancient Greek word adamant, which means hard and inviolable substance.

The chemical composition of diamonds is carbon, which is the only one in gemstones that is made up of a single element. It belongs to the equiaxed crystal system. The crystal morphology is mostly octahedral, rhomboid, dodecahedron, tetrahedron and their aggregates.

Pure diamonds are colorless and transparent, with different colors due to the mixing of trace elements. Strong adamantine luster. The refractive index, the dispersion is medium, and it is homogeneous.

The thermal conductivity is centimeters, seconds, degrees. Tested with a thermal conductivity meter, the response is the most sensitive. The hardness is 10, which is the hardest mineral known at present, and the absolute hardness is 1000 times that of quartz and 150 times that of corundum.

One set of cleavage is complete. Density grams of cubic centimeters. Diamonds are luminous, shivering oak after daylight exposure and can emit pale cyan phosphorescence at night.

X-rays irradiate the blue fluorescence of Tiansun Cave. Diamonds are chemically stable and do not dissolve easily in acids and alkalis at room temperature, and acids and bases do not act on them.

The most expensive ore in the world is the blue diamond.

A blue diamond is a type of colored diamond. Blue diamonds are caused by boron atoms that create a receptor band in the diamond's crystal. The receptor bands are able to absorb near-infrared radiation and long waves, giving diamonds their blue color.

Natural blue diamonds are rare. Blue diamonds can be synthesized, and the right amount of boron can be added to synthetic diamonds to produce blue color.

Synthetic diamonds can be mixed with the right amount of boron to produce a blue color. In the process of synthetic diamonds, nitrogen molecules remain in the raw materials mainly when filling the stockings, so synthetic blue diamonds tend to have a green color. The braided green hue of synthetic blue diamonds is caused by the absorption of short-wave visible light by discrete nitrogen.

Natural blue diamonds are very rare and are considered to be IIB. Natural blue diamonds do not contain nitrogen, but contain very small amounts of boron. The boron atom creates a acceptor band in the crystal of the diamond. The receptor bands are able to absorb near-infrared radiation and long waves, giving diamonds their blue color.

The energy difference between the acceptor band and the valence band is very small, and the valence band electrons can jump to the energized band of the acceptor chain under the action of heat, so that the diamond conducts electricity, so the blue diamond is a semiconductor.

The GR1 color centers produced by the radiation can also cause colorless type IIA diamonds that do not contain nitrogen to produce a less saturated blue. This GR1-colored blue diamond is boron-free, and its infrared absorption spectrum does not have the typical blue diamond and absorption peaks.

The oldest mineral on earth is the (selling) trace.

a.Olivine.

b.Diamond. c.Zircon.

d.Marble.

Correct mid-state argument answer: c

The world's largest iron ore mine is the Mutong Iron Mine. The Mutong Iron Mine is the world's largest proven iron ore mine, located on the border between Brazil and Bolivia, covering an area of 830,000 square kilometers. 63-66% of 80 billion tonnes of iron ore, of which Bolivia 57 billion tonnes.

If these iron ores are smelted into iron, it can also reach 40 billion tons.

Brief introduction. The world's largest iron ore mine is the Mutong Iron Mine on the border of Brazil and Bolivia, 21 kilometers south of Puerto Suarez, Bolivia, with an area of 83 square kilometers. Of these, 63-66% of iron ore is 80 billion tonnes, of which Bolivia is 57 billion tonnes, and less than 63% of iron-bearing quartzite is even more huge, and Bolivia does not even seriously evaluate its own iron-rich ore.

The uncalculated iron-bearing quartzite has an iron content of 45%, and the mine is also on the surface and can be mined in the open pit, because it is located in the tropical rainforest, the transportation is not convenient, and it is basically not mined.

The largest iron ore mine in the world is the Mutong Iron Mine. Mutong Iron Ore Mine is the world's largest proven iron ore mine, located at the junction of Brazil and Bolivia, with an area of 830,000 square kilometers. 63-66% of 80 billion tonnes of iron ore, of which Bolivia 57 billion tonnes.

If these prudent iron ores are smelted into iron, they can also reach 40 billion tons.

The world's toxic ores include stibnite, alumite, sulfur, arsenic, thallium-lead, galanite, asbestos, etc.

1. Stibnite.

The silvery luster is the main base stuffy characteristic of stibnite. In ancient times, antimony was almost considered a medicine and was actively used in cosmetics, but in fact it was extremely unstable and toxic. Handling it requires great care.

2. Blue alum ore.

Aluminite or azurite is a brittle mineral, copper sulfate, that is easily soluble in water. It is no more dangerous than artificially made copper sulphate (the same copper sulphate).

3. Sulfur, arsenic, thallium, and lead ore.

Hutchinson is a thiol mineral containing lead and thallium. If you don't wash your hands or inhale dust in time after exposure, you will fully experience its toxic effects.

4. Galanite.

Gavalanite is one of the most common lead ores and has been mined since ancient Egypt. However, working with it requires great caution because lead is toxic.

5. Asbestos. Asbestos is not a single mineral, but several thin fibrous silicates that have been actively used in construction and communication technologies since the beginning of the 20th century. Until recently, asbestos dust was discovered as a strong carcinogen, and the use of asbestos has been banned in some European countries.

The world's most poisonous ores are toxic sand, serpentine, alum, mercury tellurium, galena, red thallium lead, etc.

1. Toxic sand

Arsenic is generally found in hydrothermal deposits, pegmatites and metasomatic deposits, and is symbiotic with wolframite and cassiterite in tungsten-tin veins. Arsenic is an iron sulfide mineral with a hardness of 6 on the Mohs scale and specific gravity. Arsenic is tin-white to blue-gray, with gray-black stripes, metallic light digging is clear, opaque, and is a monoclinic rhombohedral sulfide mineral.

2. Serpentine

Chrysotile asbestos is a general term for serpentine asbestos, which is an octahedral silicate mineral with a double-layer structure composed of silicon-oxygen tetrahedra and magnesium hydroxide octahedron. Due to the disharmony of the tetrahedral and octahedral layers, three different basic structures are formed, which constitute three types of mineral tremors, namely tabular serpentine with a flat structure, serpentine with an alternating wavy structure, and serpentine with a curly columnar structure.

3. Blue alum

Copper sulfate pentahydrate, commonly known as blue alum, gallium pentahydrate or copper sulfate heptahydrate, also known as copper sulfate crystal, is a blue crystal with a molecular formula and a water content of 36%.

4. Mercury tellurium

This stone can often be found in cooled magmatic rocks. It is an ore formed by the fusion of mercury and tellurium at high temperatures.

5. Galena

Galena, a sulfide, is a common mineral in which the ratio of metal (lead) to sulfur is 1 1. Galena is usually cubic and aggregates are usually granular or dense. Lead gray, gray-black stripes, metallic luster, hardness, weak conductivity, good detection.

6. Red thallium-lead ore

This ore is formed from elements such as thallium, lead, arsenic, etc., and is found all over Europe.

The above content reference: Encyclopedia - Serpentine.

The above content reference: Encyclopedia - Red thallium ore.