quartzwacke

例句：

1. 1. The mineral deposit is located in the quartzwacke area.
   这个矿藏位于石英岩区域。
2. 2. Quartzwacke is a type of rock that contains quartz crystals.
   石英岩是一种含有石英晶体的岩石类型。
3. 3. The quartzwacke formation is formed by the metamorphism of sedimentary rocks.
   石英岩层是由沉积岩的变质形成的。