炭化ケイ素のダイヤモンドとシリコンの中間的な性質はこの構造によるものである。 The problem is what you save in the expense of the sand; you can make up for in electricity prices because silica sand usually takes some weeks for a longer period to obtain the same outcome as silicon carbide. Regarding the exact same time Acheson made his discovery, Henri https://x.com/Anumhsite/status/1809237341506306393