문의하기문의하기
Gneiss is a widespread metamorphic rock that is medium to coarse grained and often contains significant amounts of quartz and feldspar. In most other regards, gneiss is quite various and, therefore, is often named based on certain characteristics, such as parent material or mineral constituents, in order that samples of the rock may be more explicitly identified.
Not Available in Your Country
Sorry, this page is not available in your country.
You are being redirected to our local site.