For the two-phased structure in steel, see pearlite.
Expanded perlite.
Perlite is an amorphous volcanic glass that has a relatively high water content, typically formed by the hydration of obsidian. It occurs naturally and has the unusual property of greatly expanding when heated sufficiently. It is an industrial mineral, suitable "as ceramic flux to lower the sintering temperature", and a commercial product useful for its low density after processing.[1]
^Reka, Arianit A.; Pavlovski, Blagoj; Lisichkov, Kiril; Jashari, Ahmed; Boev, Blažo; Boev, Ivan; Lazarova, Maja; Eskizeybek, Volkan; Oral, Ayhan; Makreski, Petre (24 October 2019). "Chemical, mineralogical and structural features of native and expanded perlite from Macedonia". Geologia Croatica. 72 (3): 215–221–215–221. doi:10.4154/gc.2019.18. ISSN 1333-4875. Retrieved 4 January 2020.
Perlite is an amorphous volcanic glass that has a relatively high water content, typically formed by the hydration of obsidian. It occurs naturally and...
or the roots may be mechanically supported by an inert medium such as perlite, gravel, or other substrates. Despite inert media, roots can cause changes...
often in close association with or embedded in, gray perlite. The spherules occur as cores within perlite masses that typically exhibit texture of concentrically...
include a Cretaceous welded tuff and a partially devitrified Ordovician perlite. This transformation of obsidian is accelerated by the presence of water...
these realms against rockwool and proprietary insulation solids, such as perlite mixture and vermiculite bonded with sodium silicate. Although it is popularly...
from recycled glass. It has both more air and water retention space than perlite and peat. Another property of this medium is that it holds more water than...
and expensive. Aggregates are generally Sphagnum (peat moss), sand, and perlite or vermiculite. Coconut coir is coming to take the place of sphagnum moss...
common medium used is peat-lite: a mixture of peat moss, vermiculite, and perlite. The mixture should be sterile to minimize risk of introducing potentially...
technical requirements. Some vermiculite exfoliators blend with lower-cost perlite also. Vermiculite exfoliators have an international trade association called...
cuttings may be placed directly into moist substrate, such as sphagnum moss, perlite, coconut (coco) fiber, well-aerated soil, or even LECA (hydroton clay balls)...
sometimes refer to similar units made from lightweight materials such as perlite, wood, and mineral wool, typically used for wall and ceiling applications...
spheres called microballoons or cenospheres or non-hollow spheres (e.g. perlite) as aggregates. In this context, "syntactic" means "put together." The...
vegetable gardening it is sometimes used as a soil conditioner, because like perlite, vermiculite, and expanded clay, it retains water and nutrients, while...
growing medium, one part hydroponic clay and one part coarse pumice or perlite, with the addition of soil from earthworm castings. The general recommendation...
such as gold and copper, and many minerals such as asbestos, Magnesite, perlite, mica, phosphates, zeolites, clay, pumice, quartz, and silica, as well...
Supply. Retrieved 13 November 2023. "Perlite Filter Aids Explained". Perlite Institute - A Worldwide Association of Perlite Professionals. Retrieved 13 November...
dangerous to life and health. Some lightweight aggregates, such as diatomite, perlite, and vermiculite, may be substituted for ground mica when used as filler...
"Chemical, mineralogical and structural features of native and expanded perlite from Macedonia". Geologia Croatica. 72 (3): 215–21. doi:10.4154/gc.2019...
the roots. Typical mixes include large-grade drainage material such as perlite, pumice, or ceramic balls. The plants should be fed regularly with a fertilizer...
USA was the development of a series of aggregates known as Gravelite, Perlite, Rocklite, etc. In Europe, LECA commenced in Denmark, Germany, Netherlands...
mediums include: peat, coconut coir, wood products like bark and wood fiber, perlite, stone wool, soils/tufts, and recycled paper and cardboard. Other materials...
projectionist Harry Coulter Williams invented the vinyl plastic Williams Perlite screen in 1947. He had started experimenting with creating an improved...
content of loam and peat moss with generous drainage material such as perlite or coarse sand. Although Stephanotis do not technically go dormant, their...
rock fragments are held together. Examples: Clumps of dried clay Chalk Perlite The term friable is also used to describe tumors in medicine. This is an...
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