Mineral | Types & Uses | Britannica
2024年12月7日 · Mineral, naturally occurring homogeneous solid with a definite chemical composition and a highly ordered atomic arrangement. Usually formed by inorganic processes, there are several thousand known mineral species, about 100 of which constitute the major mineral components of rocks.
Mineral - Classification, Properties, Types | Britannica
2024年12月7日 · Mineral - Classification, Properties, Types: Since the middle of the 19th century, minerals have been classified on the basis of their chemical composition. Under this scheme, they are divided into classes according to their dominant anion or …
Mineral - Chemical Bonding, Structure, Properties | Britannica
2024年12月7日 · The physical and chemical properties of minerals are attributable for the most part to the types and strengths of these binding forces; hardness, cleavage, fusibility, electrical and thermal conductivity, and the coefficient of thermal …
mineral - Kids | Britannica Kids | Homework Help
Mineralogists, or people who study minerals, have identified hundreds of minerals. Some of the most common minerals are metals —for example, gold, silver, copper, and platinum. Diamond, quartz, sulfur, mica, talc, and salt are other well-known minerals.
mineral - Students | Britannica Kids | Homework Help
A mineral is defined as a naturally occurring solid that has a definite chemical composition and an ordered, usually crystalline, atomic structure. Minerals form through inorganic, or nonliving, processes. The elements in a mineral may be metallic or nonmetallic.
Mineral - Composition, Variation, Classification | Britannica
2024年12月7日 · Mineral - Composition, Variation, Classification: As stated above, most minerals exhibit a considerable range in chemical composition. Such variation results from the replacement of one ion or ionic group by another in a particular structure.
Mineral - Carbonates, Calcite, Dolomite | Britannica
2024年12月7日 · Mineral - Carbonates, Calcite, Dolomite: The carbonate minerals contain the anionic complex (CO3)2–, which is triangular in its coordination—i.e., with a carbon atom at the centre and an oxygen atom at each of the corners of an equilateral triangle.
Mineral - Hardness, Mohs Scale, Crystalline | Britannica
2024年11月12日 · Mineral - Hardness, Mohs Scale, Crystalline: Hardness (H) is the resistance of a mineral to scratching. It is a property by which minerals may be described relative to a standard scale of 10 minerals known as the Mohs scale of hardness.
Sulfide mineral | Definition, Examples, Identification, & Facts ...
Sulfide minerals are the source of various precious metals, most notably gold, silver, and platinum. They also are the ore minerals of most metals used by industry, as for example antimony, bismuth, copper, lead, nickel, and zinc.
Sulfate mineral | Types, Properties & Uses | Britannica
Sulfate minerals can be found in at least four kinds: as late oxidation products of preexisting sulfide ores, as evaporite deposits, in circulatory solutions, and in deposits formed by hot water or volcanic gases.
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