Vermiculite definitions

Vermiculite

1) Industrial mineral 2) Magnesium mineral 3) Passive fire protection
Found on https://www.crosswordclues.com/clue/vermiculite

• (n.) A group of minerals having, a micaceous structure. They are hydrous silicates, derived generally from the alteration of some kind of mica. So called because the scales, when heated, open out into wormlike forms.
Found on http://thinkexist.com/dictionary/meaning/vermiculite/

Vermiculite

Lightweight expanded mica often used in soil-less media.
Found on http://urbanext.illinois.edu/veggies/glossary.cfm

vermiculite

clay mineral similar to montmorillonite in structure and, in some cases, composition. Vermiculite is typically formed by the alteration of biotite, ... [1 related articles]
Found on http://www.britannica.com/eb/a-z/v/16

Vermiculite

A light-weight, mineral called mica that is added to potting mixtures to improve root growth via aeration and has moisture retaining abilities. There is no nutritive value in the mineral.
Found on http://www.encyclo.co.uk/local/20077

Vermiculite

An aggregate somewhat similar to perlite that is used as an aggregate in lightweight roof decks and deck fills. It is formed from mica, a hydrous silicate with the ability of expanding on heating to form lightweight material with insulation quality. Used as bulk insulation and also as aggregate in insulating and acoustical plaster and in insulatin...
Found on http://www.encyclo.co.uk/local/20933

Vermiculite

Ver·mic'u·lite noun [ Latin vermiculus , dim. of vermis worm.] (Min.) A group of minerals having, a micaceous structure. They are hydrous silicates, derived generally from the alteration of some kind of mica. So called because the scales, when heated, open out into wormlike forms. ...
Found on http://www.encyclo.co.uk/webster/V/17

Vermiculite

Lightweight mineral granules that improve the aeration and water retention of potting soil.
Found on http://www.greeneducationfoundation.org/greenthumbchallengesub/gardening-re

Vermiculite

- A mineral used as bulk insulation and also as aggregate in insulating and acoustical plaster and in insulating concrete floors.
Found on http://www.homebuildingmanual.com/Glossary.htm

Vermiculite

Vermiculite is a group of minerals having, a micaceous structure. They are hydrous silicates, derived generally from the alteration of some kind of mica. They are so called because the scales, when heated, open out into worm- like forms. Processed vermiculite is used as an insulating material in building.
Found on http://www.probertencyclopaedia.com/browse/HV.HTM

Vermiculite

An aggregate used in lightweight insulating concrete, formed by the heating and consequent expansion of a micaceous mineral.
Found on http://www.rbroof.com/glossary-of-terms

Vermiculite

An additive that helps retain water and aerate the medium. It's brownish, gold in colour and is soft almost like a sponge to the touch.
Found on http://www.rollitup.org/general-marijuana-growing/98008-glossary-terms.html

vermiculite

A sterile soil amendment created when the mineral 'mica' has been heated to the point of expansion, like popcorn. A good addition to container potting mixes, vermiculite retains moisture and air within the soil.
Found on http://www.thegardenhelper.com/dictionary.html

Vermiculite

An odorless, moisture-retaining, mineral substance. This substance was once controversial becuase it contained trace amounts of asbestos. Vermiculite potting soils are now regulated and labeled for ingredients. Use at your own discretion.
Found on http://www.vegetablegardeninglife.com/vegetable-gardening-glossary.html