Talk:Quartz/@comment-177.195.40.228-20150815181522/@comment-27498033-20151229095834

Silica, in the form of quartz, is naturally present in many kinds of sand. Now, it's possible the sand of an alien world would be composed of something else but quartz glass/fuzed quartz/fuzed silica can be made from the high purity silica found in sand.