marble, granite, block, slab, tile mosaic, counter top
Grade | Size | Surface | Price |
---|---|---|---|
A | 1800*1600*20 mm | Polished | $/ |
marble, granite, block, slab, tile mosaic, counter top
Black Quartzite rock is a metamorphic rock composed mainly of quartz (more than 85%), formed by metamorphism of quartz sandstone and siliceous rock after sedimentation and diagenesis of marine quartz sands on the Proterozoic continental margin. Black Quartzite’s mine is about 1000 meters long, several hundred meters wide and tens of meters deep.