Meaning of AMPHIBOLE GROUP

Pronunciation:			'amfu`bowl groop
WordNet Dictionary
	Definition:		[n]  a group of minerals with similar crystal structures containing a silicate chain and combinations of chiefly sodium and calcium and magnesium and iron and aluminum
	See Also:		actinolite, amphibole, anthophyllite, asbestos, hornblende, mineral, nephrite, tremolite