The Meguro district is situated in the the southern part of the Hidaka metamorphic belt in Hokkaido . The major rock types in the area are composed of the so-called migmatites and various metamorphic rocks. This paper presents a short description for the petrographic nature of the cordierite-bearing rocks found in the metamorphic rocks. The rocks are composed essentially of plagioclase, alkali-feldspar, quartz, biotite, muscovite, cordierite, sillimanite and many accessory or secondary minerals. A large cordierite listed in the sub-title of this paper have been examined optically, and by X-rays. The results of the examination are presented, and some problems are briefly discussed.
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