Cinnabar - Shinsha

Japanese: シンシャ(辰砂) - しんしゃ

(1) A major ore mineral of mercury. Its composition is HgS. It has a hexagonal crystal system and bright red rhombohedral crystals, but it is mostly found in lumpy or earthy form. It is soft, with a hardness of 2-2.5, a specific gravity of 8.09, and a metallic luster. It is a mineral characteristic of hydrothermal deposits, and mainly penetrates volcanic rocks in the form of veins and precipitates near the surface. The Almaden mine in Spain is the world's largest deposit, and in Japan the Itomuka mine in Hokkaido is famous. (2) Ceramics with underglaze painting using copper oxide. It is so named because it has a red color similar to the color of natural vermilion (cinnabar).
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Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:

（１）水銀の主要な鉱石鉱物。組成はHgS。六方晶系で鮮紅色の菱(りょう)面体結晶を示すが，産状は多くは塊状か土状。やわらかく硬度２〜2.5，比重8.09，金属光沢を有する。熱水鉱床に特徴的な鉱物で，おもに火山岩に脈状に入り込み地表近くで沈殿したもの。スペインのアルマデン鉱山が世界最大の鉱床，日本では北海道のイトムカ鉱山が有名であった。（２）酸化銅で下絵付した陶磁器。天然産のシンシャ（朱）の色に近い紅色を示すので，こう呼ばれる。
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