料峭的黄昏,浩瀚的沙漠,低沉的驼铃,一支长途旅行的阿拉伯商队停顿下来,拢起枯根干枝,燃起熊熊篝火,他们疲乏地入睡了。次日黎明,一位早醒的商人拨开了余烬,突然大声惊呼起来。原来在高温下砂粒已经烧结成为奇妙的透明物体。偶然的发现,预告了以石英砂、长石、纯碱以及石灰石等为主要原料的人工制造的玻璃 Dusk of the evening, the vast desert, low camel bell, a long-distance caravan of Arabs to stop pounding up, dry the roots dry branches, ignited bonfire, they tired to fall asleep. Dawn the next day, an early morning businessman opened his embers and suddenly exclaimed aloud. The original sand has been sintered at high temperatures into a wonderful transparent object. Occasionally discovered, forecasted artificial quartz glass, feldspar, soda ash and limestone as the main raw material of artificial glass