簡介:"礦物自然元素石墨GraphiteThe color and streak of graphite is black, the same as diamond, a carbon mineral. However, due to different structure, graphite and diamond have distant physical properties. Graphite falls into the hexagonal System with thin tubular and ease of cleavage; it has the soft texture and has hardness. It is flaky, soft and greasy. Graphite seldom has the chemical combination with oxygen and acidity. Besides that, the melting point of graphite is up to 3,000℃ and it has good conductivity of electricity and heat. Therefore, it is often used for the manufacturing of battery, electrode, and crucible. Graphite is also the important material for making pencils.顏色與條痕均為黑色,與鑽石一樣都是由碳原子所組成,但因構造不同,兩者的物理性質有極大的差異。石墨屬於六方晶系,具層狀結構,沿底面有一組完全的解理,因此質地很軟,硬度僅有1-2,也容易剝開,並具有滑膩的感覺。 石墨很難與氧化合,也不與酸起化學反應,加上,熔點高達3,000℃,並具有良好的導電性與導熱性,因此,常常被用來製造電池、電極、坩鍋等。此外,石墨也是製作鉛筆的重要原料。"