Vermiculite is a hydrous phyllosilicate mineral which undergoes significant expansion when heated. Exfoliation (other links: A, B) occurs when the mineral...
24 KB (2,769 words) - 09:28, 18 April 2024
for building materials Shale Pumice Slag Vermiculite - many expanders of perlite are also exfoliating vermiculite and belong to both trade associations As...
13 KB (1,233 words) - 20:36, 15 April 2024
and vermiculite. Palabora also has processing facilities on site for the production of purified copper from mined copper ore, and a vermiculite recovery...
3 KB (242 words) - 16:24, 14 April 2024
Asbestos (section Vermiculite)
used as insulation. Some deposits of vermiculite are contaminated with small amounts of asbestos. One vermiculite mine operated by W. R. Grace and Company...
108 KB (11,605 words) - 23:53, 18 May 2024
Hydroponics (section Vermiculite)
similar properties and uses to vermiculite but, in general, holds more air and less water and is buoyant. Like perlite, vermiculite is a mineral that has been...
89 KB (9,245 words) - 02:52, 14 May 2024
world's largest producer of chrome, manganese, platinum, vanadium and vermiculite. It is the second largest producer of ilmenite, palladium, rutile and...
238 KB (21,827 words) - 18:23, 18 May 2024
contrasted effect: highly hydrated magnesium ions are "swellers" as in vermiculite (totally expanded interlayer) while poorly hydrated potassium ions are...
10 KB (1,082 words) - 20:17, 24 January 2024
for a period one to three months. Seeds are placed in a medium such as vermiculite, peat, or sand and refrigerated in a plastic bag or sealed container...
4 KB (499 words) - 15:40, 30 March 2024
paint-on treatments. The bumpy surface is created by tiny particles of vermiculite or polystyrene, which gives the ceiling sound-deadening properties. Mixtures...
4 KB (407 words) - 04:31, 19 May 2024
protection from total flame engulfment. Most commonly made of Zetex or vermiculite and not aluminized. These provide ambient protection up to ≈2,000 °F...
4 KB (440 words) - 14:07, 13 April 2024