1·Its mineral resources are coal, quartzite, marble, copper, lead and zinc etc.
它的矿物资源是煤、石英岩、大理石、铜、领引和锌等等。
2·The driveway design is executed with the use of grey quartzite cobblestones and is deliberately kept understated.
车道的设计由灰色石英岩鹅卵石组成，刻意保持了一种低调感。
3·Medium hard formation with high compressive strength. Such as limestone, taconite, blaize, quartzite, silica sand, basalt, granite ect.
高抗压强度的硬地层，如硬石灰岩。燧岩。硬砂岩。石英岩。石英砂。玄武岩。花岗岩等极硬岩层。
4·And what I do is, I select a hard stone hammer, in this case a quartzite pebble about the size of a cricket ball, and I elect to hit it in one place - and this is where I start to knap.
我要做的就是，选择一块够硬的石锤，这次我选这块是个头有板球大小的石英岩卵石。先挑个地方锤下去，接着我就开始从这地方开始凿了。
5·We're able to provide granite, marble, SLATE, sandstone, quartzite, li.
我们能够提供花岗岩，大理石，板岩，砂岩，石英岩，李。