Quartz is pure silica while “glass” borosilicate has boron and some other minerals added to help it melt at a lower temperature. See the blog on how to tell if your glass is quartz or boro.
Quartz is pure silica while “glass” borosilicate has boron and some other minerals added to help it melt at a lower temperature. See the blog on how to tell if your glass is quartz or boro.