• What is Quartzite? - GRANITELAND

    Graniteland » Natural Stone Magazine » Home use » What is Quartzite? » ... crushed quartzite is often used as railway ballast. Natural stone by color:

  • Quartz - Wikipedia

    The yellow quartz was used prior to that to decorate jewelry and tools but it was not highly ... Quartz use as prehistoric stone tool raw material ...

  • Quartzite - Wikipedia

    Because of its hardness and angular shape, crushed quartzite is often used as railway ballast. Quartzite is a decorative stone and may be used to cover walls, as ...

  • Natural Stone - Stone Source

    Alternative Basalt Burlington Stone Granite Limestone Marble Marble/Basalt Onyx Quartzite Quartzite ... Learn more about the characteristics of natural stone by ...

  • Quartz | mineral | Britannica

    Sandstone, composed mainly of quartz, is an important building stone. Large amounts of quartz sand ... Crushed quartz is used as an abrasive in sandpaper, ...