Kaimondake Basalt Field width = 8.8mm A caption is in the bottom. The Image is XPL on mouse to PPL
開聞岳（鹿児島）の玄武岩　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)．


Colorful phenocrysts are olivines. Others are clino-pyroxenes(upper-left) and piagioclases. Olivines show high refraction indexes and sometimes have black outer rims under PPL. 
派手な干渉色はかんらん石．ほかは単斜輝石（左上）や斜長石．かんらん石はPPLで屈折率が高く，しばしば黒い輪郭が見える．

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