In fact, there are no fixed ingredients for crystal glass, says Hsu. It is merely any glass that appears as sparkling as natural quartz crystal, and has no bubbles or flaws.
事實上，水晶玻璃沒有一定的成分，徐文雄表示，只要玻璃看起來像水晶一樣晶瑩剔透，沒有氣泡、沒有紋路、清澈漂亮就叫水晶玻璃。