Nephrite (English spelling)
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A dense aggregate of calcium-rich amphibole crystals such as actinocene and tremolite. It is also called nephrite. It comes in a variety of colors, including milky white, gray, pale yellow-green, and deep green, and has a translucent waxy feel. Its specific gravity is 2.9 to 3.1, and its Mohs hardness is 6 to 6.5. It has been used as a raw material for crafts and accessories since the Stone Age. Jadeite [Minato Hideo] Source: Heibonsha World Encyclopedia, 2nd Edition Information |
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アクチノセン石および透セン石のようなカルシウムに富む角セン石の微細結晶の緻密な集合体。軟玉ともいう。乳白色，灰色，淡黄緑色，深緑色など種々の色彩を示し，半透明蠟感をもつ。比重2.9～3.1，モース硬度6～6.5。石器時代より工芸品，装身具の原石として利用されている。ヒスイ【湊 秀雄】
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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