题目内容
The feldspars group belong to:
查看答案
搜索结果不匹配？点我反馈
更多问题
Ways of how minerals formed.
The most common mechanical properties we used to identify the minerals are:
This phenomena is the characteristic of two or more crystalline substances to have similar chemical composition, axial rations and crystal forms, and to crystallize in the same crystal class, such as olivine in which Mg and Fe take the same positions in crystal structure. What is the phenomena described by the above paragraph?
What kind of phenomena is the following expression described. It is the characteristic of a chemical substance to crystallize in more than one form under different conditions, such as graphite and diamond. Both graphite and diamond are composed of carbon, but they have different crystal structures and thus have different characteristics. For example, graphite has layer structures and thus is very soft, while diamond has framework structures and thus is the hardest mineral on Earth.
微信支付 
支付宝支付