Sanukite
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A dense black andesite found in the central Kii Peninsula, northern Shikoku, islands in the Seto Inland Sea, and northern Kyushu (Nikami volcanic chain). Also known as Sanuki rock. It contains little plagioclase, many small phenocrysts of orthopyroxene, and a glassy matrix. It contains garnet as an exotic crystal. It is commonly known as cancanite because it produces a beautiful clang sound when struck. → Related topics Chipped stone tools Source : Heibonsha Encyclopedia About MyPedia Information |
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紀伊半島中部，四国北部，瀬戸内海の島，九州北部（二上火山列）に分布する黒色緻密(ちみつ)な安山岩。讃岐岩とも。斜長石が少なく，斜方輝石の小斑晶が多く，石基はガラス質。ザクロ石を外来結晶として含む。たたくとカンカンというきれいな音色を出すので，カンカン石と俗称。 →関連項目打製石器 出典 株式会社平凡社百科事典マイペディアについて 情報 |
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