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elaeolite การใช้

ประโยคมือถือ
  • These enclosures sometimes give rise to a chatoyant effect like that of cats-eye and cymophane; and elaeolite when of a good green or red color and showing a distinct band of light is sometimes cut as a gem-stone with a convex surface.
  • The color and greasy luster of elaeolite ( a name given by M . H . Klaproth 1809, from Greek words for oil [ ????? ] and stone [ ????? ]; ) are due to the presence of numerous microscopic enclosures of other minerals, possibly augite or hornblende.