日本岩石鉱物鉱床学会
にっぽんがんじきこうぶつこうしょうがっかい
Japanese Association of Mineralogists, Petrologists and Economic Geologists
造岩鉱物 is read as ぞうがんこうぶつ (zougankoubutsu) and means rock-forming minerals.
ぞうがんこうぶつ
zougankoubutsu
にっぽんがんじきこうぶつこうしょうがっかい
Japanese Association of Mineralogists, Petrologists and Economic Geologists