The mineral graphite is an allotrope of carbon. It was named by Abraham Gottlob Werner in 1789 from the Ancient Greek ""to draw/write"", for its use in pencils, where it is commonly called lead (not to be confused with the metallic element lead). Unlike diamond (another carbon allotrope), graphite is an electrical conductor, a semimetal. Graphite is the most stable form of carbon under standard conditions. ",

일반 예시Graphite632.8 nm에서의 굴절률 및 소광 계수는2.7및1.39. Below are files of complete refractive index and extinction coefficients. If the file is not available for download, you can request our proprietary file by clicking "Request".

Refractive Index Reference - Filmetrics Composite

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