vermiculite

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ver·mic·u·lite

 (vər-mĭk′yə-līt′)
n.
Any of a group of micaceous hydrated silicate minerals related to the chlorites and used in heat-expanded form as insulation and as a planting medium.

[Latin vermiculus, diminutive of vermis, worm; see vermicular + -ite.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

vermiculite

(vɜːˈmɪkjʊˌlaɪt)
n
(Minerals) any of a group of micaceous minerals consisting mainly of hydrated silicate of magnesium, aluminium, and iron: on heating they expand and exfoliate and in this form are used in heat and sound insulation, fireproofing, and as a bedding medium for young plants
[C19: from vermicul(ar) + -ite1]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ver•mic•u•lite

(vərˈmɪk yəˌlaɪt)

n.
any of a group of platy minerals, hydrous silicates of aluminum, magnesium, and iron, that expand markedly on being heated: used for insulation and as a plant growth medium.
[1815–25, Amer.; vermicul (ar) + -ite1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.vermiculite - any of a group of yellow or brown hydrous silicate minerals having a micaceous structure
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
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References in periodicals archive
M2 PRESSWIRE-August 27, 2019-: Global Vermiculite Mining Market Report 2019
The VMT clay used in this work was supplied by the Egyptian Vermiculite Industry, Cairo, Egypt.
Micropropagated seedlings with a mean of four roots and two leaves (approximately 3.25cm each root, and 2.10cm each leaf) and bulbs with a 4.7mm diameter were transplanted to 50-cells polyethylene trays of 50cm3 each containing each the following substrates: T1: expanded vermiculite, T2: carbonized rice husk (CRH), T3: commercial 1 (according to specifications on the label, composed of Sphagno peat, expanded vermiculite, CRH, dolomitic limestone, gypsum and NPK fertilizer), T4: coconut fiber, and T5: composted Pinus bark.
Perlite and vermiculite are common ingredients in potting mix additives, which are added to create an airier and less dense environment.
The adopted experimental design was in randomized blocks, in a factorial scheme of 3x4 [cultivars: Bragantina, Iacara and Guajarina x substrates: soil + organic compound (18%), vermiculite, semi-carbonized rice hull and commercial substrate], with four repetitions of 16 cuttings each.
Jobs for the week Free lily You can propagate lily bulbs by detaching their firm, fleshy scales and putting them in a bag of vermiculite in a warm, light place.
The substrates analyzed were: coconut shell fiber, phenolic foam and expanded vermiculite. Each cultivation system had 16 profiles, with three plots.
The state of Montana reached a $43M settlement in 2009 and a $25M settlement last year with people injured by asbestos at a vermiculite mining project in Libby, the report says.
Carbonatites have gained considerable economic significance because of their newly recognized importance in producing large-scale sources of niobium, cerium, apatite, magnetite, barite, vermiculite, phosphorus, tantalum, uranium, thorium, copper, iron, titanium, vanadium, barium, fluorine, zirconium, and other rare or incompatible elements.
Half fill a medium-sized see-through plastic bag with vermiculite that you have dampened.
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