hydromagnesite
Noun. (mineralogy) A hydrated magnesium carbonate mineral with the chemical formula Mg5(CO3)4(OH)2.4H2O, used as a fire retardant.This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.
This entry was last updated on RefTopia from its source on 3/20/2012.