Diamond is used to cut glass, since it is harder than glass.
Maybe pieces of old,broken glass
Usually sandstone is used to supply quartz for making glass.
Usually sandstone is used to supply quartz for making glass.
There could be several rocks used in the making of glass, but the main constituent material used in making glass is quartz. The rock which is used most for supplying the quartz used in glass making is sandstone.
is used for making windows/glass
this rock is used for smelting and making glass
steel and glass
lots
Quartz is a colorless mineral found in igneous rocks that is commonly used in glass making. It is valued for its hardness and resistance to chemical weathering, making it an ideal ingredient for a variety of glass products.
It can be, its called glass.
phosphate