"amphibole group"@en-us . "113826742"@en-us . "110511446"@en-us . "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"@en-us . . "114666012"^^ . "14666012-n"^^ . . . . . . "amphibole group"^^ . "0"^^ . . . "0"^^ . .