えいすいせき
鋭錐石
1. anatase (TiO2); octahedrite
2. AnataseAnatase is one of the three mineral forms of titanium dioxide, the other two being brookite and rutile. It is always found as small, isolated and sharply developed crystals, and like rutile, a more commonly occurring modification of titanium dioxide, it crystallizes in the tetragonal system; but, although the degree of symmetry is the same for both, there is no relation between the interfacial angles of the two minerals, except in the prism-zone of 45° and 90°.
Read “Anatase” on English Wikipedia
Read “鋭錐石” on Japanese Wikipedia
Read “Anatase” on DBpedia
Read “Anatase” on English Wikipedia
Read “鋭錐石” on Japanese Wikipedia
Read “Anatase” on DBpedia
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