Minerals

A fragile ornamental stone known since ancient times, bringing fulfillment of wishes to its owner. Malachite Mineral: Malachite Color: Shades of Green Mohs hardness: 3.5–4 Density: 3.75–3.95 g / cm3 History of Malachite Now it is very difficult to say when the malachite stone was discovered. Mention of it is found since the days of Ancient Egypt. At that time, this mineral was associated with the name of the goddess Hathor, the patroness of the family, fertility and female beauty. There are several versions of the origin of the name malachite...

Worldwide diamond suppliers Diamonds are available all over the world. Pioneer and centuries-old monopolist was India. Here, the stone found a long time before our era, reserves mine praised for ages. From everywhere, almost all the legendary diamonds. Today, in the world, there are several main regions with the industrial scale of production. World Top Rating (%): Russia - 22; Australia - 20; Botswana - 19; Kango - 17; Canada - 10. Recommended reading: Special features with natural ruby. The area of ​​stone location - Polar Kryp, Pyktyna Sakhapa, Latin America, Far East...

Diamond is the king of minerals. Diamonds are one of the most valuable mountainous planets. Found in several regions, it is possible to find a lot of means. People of many professions, from a geologist to a jeweler, are trying to make a diamond become a diamond. There are diamonds? For the occurrence of diamond crystals, the conditions are necessary: Global from 100 km. Temperature not lower than 1100 ° C. Pressure not less than 35 kilobars. Natural processes create types of deposits: Indigenous field...

Minerals Minerals are natural bodies that are homogeneous in chemical composition and physical properties. They were formed as a result of physicochemical processes that occur on the surface of the Earth and in its bowels. Minerals are components of rocks. Most minerals are solid, having a crystalline structure, capable of forming polyhedrons (crystals). In addition to solid, there are liquid minerals (mercury, water), gas (methane, carbon dioxide). Part of the minerals is formed as a result...

Aluminum ores - minerals and rocks used to produce aluminum. The main aluminum ores are bauxite, nepheline and alunite. Bauxites (the name comes from the Bo area in the south of France) - sedimentary rocks of red or brown color. In northern Australia, 1/3 of their global reserves lie, and the country is among the leading states in their production. In Russia, bauxite is mined in the Ural Mountains. The main component of bauxite is alumina. Alunites (the name comes from the word Alun - alum (fr...

Lignite - fossil coal containing up to 78% carbon. It seams among sedimentary rocks, formed from plant debris. In brown coal, clay substance is usually found as an impurity, which increases its ash content. It can ignite spontaneously. Its calorific value is lower than that of coal (6000 kcal/kg), but nevertheless it is used as fuel or as a raw material for the production of combustible fuel and other chemical products. A type of brown coal with a clearly visible structure of the remnants of wood is called lignite...

Brief description of the main minerals. Diamond - the hardest of all minerals. In composition, it is pure carbon. It occurs in placers and in the form of inclusions in igneous rocks. Diamonds are colorless, but there are also painted in various colors. A faceted diamond is called a diamond. Its weight is usually measured in carats (1 carat = 0.2 g). The largest diamond found in South Africa: it weighed more than 3,000 carats. Most diamonds are mined in Africa (98% of the mining in the capitalist world)...

Minerals Minerals - rocks and minerals that are used or can be used in the national economy. They are divided in different ways. In one case, their physical condition is emphasized, and the following types are distinguished: solid (various ores, coal, marble, granite, salts); liquid (oil, mineral water); gas (combustible gases, helium, methane). In another case, their use is taken as a basis, as a result of which fossils are distinguished: combustible (coal, peat, oil, natural gas, oil shale);...