Diamond sand Miso

Japanese: 金剛砂御薗 - こんごうしゃのみその

Diamond dust is a small crystal of garnet. It is also called emery. It is used to cut and polish jade stones. The first mention of diamond dust was in the entry for September 13, 743 (Tenpyo 15) in the Shoku Nihongi, which states that the official slave Hita controlled jade stones using sand from Osaka (Osaka), northeast of Mount Nijo in Yamato. During the Heian period, this area became Diamond Duty Ozono and was under the control of the Kurodosho (Nishinomiyaki). The fields of Ozono were also called Kongo-sho, and are known to have been the property of Kofuku-ji Temple in 1272 (Bun'ei 9) (Kasugasha Shrine Records), and in 1399 (Oei 6), rice for the construction of Kofuku-ji Temple was levied on a field of 22 cho, 1 tan, and 30 bu.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

金剛砂は柘榴石の小結晶。エメリーともいう。玉石を切り，研磨するのに用いる。《続日本紀》天平15年(743)9月13日条に官奴斐太が大和二上山の東北，大坂(逢坂)の砂をもって玉石を治めたとあるのが初見。平安時代，この地の辺は金剛砂御薗となり，蔵人所の支配下にあった(《西宮記》)。御薗の田畠は金剛荘ともいわれ，1272年(文永9)には興福寺領であったことが知られ(春日社記録)，1399年(応永6)興福寺造営段米が22町1反小30歩の田地に賦課されている。

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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