åkermanite
Noun. (mineral) A melilite mineral of the sorosilicate group, containing calcium, magnesium, silicon, and oxygen and having the chemical formula Ca2Mg[Si2O7].This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license.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.