...A general term for natural inorganic fibrous minerals that have long been used as fireproof materials, also known as asbestos. It refers to minerals in the serpentine or amphibole groups that can be broken down into fibers, and chrysotile, a type of serpentine group, is also called asbestos. The chemical composition of chrysotile is Mg 6 Si 4 O 10 (OH) 8 . From [Serpentine]...The name comes from its snakeskin-like appearance. It is divided into three types: antigorite (leaf-like), lizardite (lump-like), and chrysotile (fibrous, tubular under an electron microscope), but they are often found mixed together. All have a layered crystal structure, with the layers of chrysotile curved into pipes, and antigorite has wavy layers that are inverted and connected together. ... *Some of the terminology explanations that mention "chrysotile" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…不燃材として古くから利用されている天然の無機繊維状鉱物の総称で,石綿(いしわた∥せきめん)とも呼ぶ。蛇紋石族または角セン石族の鉱物のうち,繊維状にほぐすことのできるものをいい,蛇紋石族の一種であるクリソタイルchrysotileは温石綿(おんじやくめん)とも呼ばれる。クリソタイルの化学組成はMg6Si4O10(OH)8。… 【蛇紋石】より…名称はヘビの皮のような外観を示すことによる。アンチゴライトantigorite(葉片状),リザーダイトlizardite(塊状),クリソタイルchrysotile(繊維状,電子顕微鏡下ではパイプ状)の3種に分けられるが,これらが混じって出ることが多い。いずれも層状の結晶構造をもち,クリソタイルでは層が湾曲してパイプとなり,アンチゴライトでは波状の層が反転しながら連なっている。… ※「chrysotile」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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