こうちゅうせき
紅柱石
1. andalusite
2. AndalusiteAndalusite is an aluminium nesosilicate mineral with the chemical formula Al2SiO5. The variety chiastolite commonly contains dark inclusions of carbon or clay which form a checker-board pattern when shown in cross-section. A clear variety first found in Andalusia, Spain can be cut into an interesting gemstone.
Read “Andalusite” on English Wikipedia
Read “紅柱石” on Japanese Wikipedia
Read “Andalusite” on DBpedia
Read “Andalusite” on English Wikipedia
Read “紅柱石” on Japanese Wikipedia
Read “Andalusite” on DBpedia
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