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石(shi)(shi)英(ying)(ying)(ying)(ying)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)是一種只含二氧(yang)化硅單(dan)一成份的(de)(de)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)。由于種類(lei)、工(gong)藝(yi)、原料的(de)(de)不同，國外常(chang)常(chang)叫做(zuo)硅酸(suan)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)、石(shi)(shi)英(ying)(ying)(ying)(ying)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)、熔(rong)融石(shi)(shi)英(ying)(ying)(ying)(ying)、熔(rong)凝石(shi)(shi)英(ying)(ying)(ying)(ying)、合成熔(rong)融石(shi)(shi)英(ying)(ying)(ying)(ying)，以及沒有明(ming)(ming)(ming)確(que)概(gai)念(nian)的(de)(de)透(tou)(tou)明(ming)(ming)(ming)、半(ban)(ban)透(tou)(tou)明(ming)(ming)(ming)、不透(tou)(tou)明(ming)(ming)(ming)石(shi)(shi)英(ying)(ying)(ying)(ying)等。我國統(tong)稱石(shi)(shi)英(ying)(ying)(ying)(ying)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)，多按工(gong)藝(yi)方法(fa)、用途及外觀來分類(lei)，如電熔(rong)透(tou)(tou)明(ming)(ming)(ming)石(shi)(shi)英(ying)(ying)(ying)(ying)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)、連熔(rong)石(shi)(shi)英(ying)(ying)(ying)(ying)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)、氣煉透(tou)(tou)明(ming)(ming)(ming)石(shi)(shi)英(ying)(ying)(ying)(ying)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)、合成石(shi)(shi)英(ying)(ying)(ying)(ying)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)、不透(tou)(tou)明(ming)(ming)(ming)石(shi)(shi)英(ying)(ying)(ying)(ying)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)、光(guang)學石(shi)(shi)英(ying)(ying)(ying)(ying)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)、半(ban)(ban)導體用石(shi)(shi)英(ying)(ying)(ying)(ying)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)、電光(guang)源用石(shi)(shi)英(ying)(ying)(ying)(ying)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)等

石英玻(bo)璃是以(yi)含二氧(yang)化(hua)硅物質，如(ru)水晶、硅石。四氧(yang)化(hua)硅為原料高溫熔(rong)制(zhi)而(er)(er)成。其二氧(yang)化(hua)硅含量比(bi)普(pu)通玻(bo)璃高得多，一(yi)般石英玻(bo)璃二氧(yang)化(hua)硅含量在99.999%。石英玻(bo)璃具有優異的(de)光學性能，不僅可見光透(tou)光度特別好(hao)，而(er)(er)且透(tou)紫(zi)外線，紅外線。