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29 Ιαν 2023 · In geology, a mineral is a naturally occurring solid that has a well-defined chemical composition and crystal structure. Most minerals are inorganic, although some mineralogists allow for minerals that are organic compounds or else made by organisms rather than geological processes.
Complete online glossary of rocks, minerals, and gemstones.
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form. [1] [2] The geological definition of mineral normally excludes compounds that occur only in living organisms.
By its definition as a homogeneous solid, a mineral is composed of a single solid substance of uniform composition that cannot be physically separated into simpler chemical compounds. Homogeneity is determined relative to the scale on which it is defined.
Minerals are the building blocks of rocks, which are made up of one or more minerals. They are typically formed through various geological processes, such as crystallization from a melt (igneous), precipitation from a solution (sedimentary), or metamorphism (metamorphic).
27 Απρ 2010 · A mineral is an element or chemical compound that is normally crystalline and that has been formed as a result of geological processes. Examples include quartz, feldspar minerals, calcite, sulfur and the clay minerals such as kaolinite and smectite.
Minerals are the building blocks that make up rocks! They are the ores that we extract metals from to make electronics. They’re in the soils we need to grow the plants we eat for food.
