VERMICULITE Meaning and
Definition
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Vermiculite is a naturally occurring mineral that belongs to the phyllosilicate group. It is formed by the alteration of certain types of mica through the process of hydration. The mineral is typically found in mines, and it has a flaky or laminated appearance with a silvery or bronze color.
Chemically, vermiculite consists of hydrated magnesium-aluminum-iron silicates. Its unique physical properties make it a versatile and useful material in various industrial applications. One of its most notable characteristics is its ability to expand when heated, forming a lightweight and porous substance.
The expanded form of vermiculite is utilized in several industries due to its excellent insulation properties. It has low density, high porosity, and superb heat resistance, making it an ideal component in insulation products, such as wallboards, fire-resistant barriers, and furnace linings. Vermiculite is also widely used in horticulture and gardening. Its ability to hold water and nutrients while still providing good aeration makes it an excellent medium for growing plants.
Furthermore, vermiculite has been employed in construction materials, lightweight concrete, and as a soil conditioner. Its non-toxic and non-reactive nature, along with its excellent fire-resistant properties, make vermiculite a preferred choice for several applications.
However, it is important to note that some vermiculite deposits have been found to contain asbestos fibers, which can pose health risks when inhaled. Therefore, it is crucial to ensure that vermiculite products are sourced from reputable mines and that proper precautions are taken during handling or removal to avoid potential asbestos exposure.
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A mineral resembling talc in appearance, having a granular scaly structure and greasy feel, the scales of which, when highly heated, separate into worm-like threads.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for VERMICULITE
Etymology of VERMICULITE
The word "vermiculite" is derived from the Latin word "vermiculus", meaning "little worm" or "insect larva". This term was originally used to describe the appearance of the mineral, as it expands and resembles the movement of worms or larvae when heated. Therefore, "vermiculite" refers to the mineral's worm-like or worm-track appearance.
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