Piemontite-Schist, Sekigawa（Ehime Pref.）: Field width = 8.8mm A caption is in the bottom. The Image is XPL on mouse to PPL
愛媛県関川の紅簾石片岩　横幅8.8mm．写真の下に説明．薄片写真：クロスポーラー（XPL)．マウスを乗せるとオープンポーラー（PPL)．


Reddish-pink to yellow under PPL are piemontite. Colorless under XPL are quartz. Colorful mineral like needles under XPL are muscovites. A little bit thick section. Some quartz are cream-colored.

関川の紅簾石片岩．PPLでピンクや黄色は紅簾石，XPLで無色は石英．同じくカラフルな針状の鉱物は白雲母．少し厚めの薄片．石英の幾つかはクリーム色を帯びている．

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