No, but there is silicon glass, a premium glass made exclusively from silica. The main ingredient is high-quality mountain crystals. You can also fuse fine quartz sand. Unfortunately, this method is made imperfect by the entrapment of microscopic air bubbles.  However, the highest quality silicon glass comprises synthetic silica (SiCl4). You’ll have to treat the glass with an oxygen-hydrogen flame. The product is free from bubbles.