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Pele's hair
Pele's hair is stone mineral threads or fibers formed when small particles of molten material are thrown into the air and spun out by the wind into long hair-like strands.〔MacDonald, Abbott, and Peterson, p. 16.〕 The diameter of the strands is less than , and they can be as long as .〔Gill, p. 31.〕 The material is gold or golden-brown,〔Lopes, p. 79.〕 and is commonly found downwind from active vents.〔Morey, p. 170.〕 ''Pele's hair'' is primarily a scientific term used by volcanologists, and is derived from Pele, the Hawaiian goddess of volcanoes.〔Nimmo, p. 86.〕 == Applications == A manufactured version of Pele's hair made from basalt rock and recycled slag from steel manufacturing called mineral wool or stone wool is commonly used as a non-combustible, durable, dimensionally stable, UV stable, hydrophobic, vapor permeable building insulation for residential, commercial, and high rise building. A hydrophilic version is used as a low water usage, high yield, soil substitute for hydroponic agriculture.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Pele's hair」の詳細全文を読む
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