itacolumite 的定义
- a sandstone consisting of interlocking quartz grains and mica scales, found principally in Brazil and North Carolina, and noted for its flexibility in thin slabs.
更多itacolumite例句
- Some authorities hold that the diamond has been formed in certain quartz veins which traverse the itacolumite.
- Itacolumite is yellow or pale-brown, and splits readily into thin flat slabs.