玄明粉 为硫酸盐类芒硝族矿[矿物]无水芒硝(Thenardite)或芒硝经风化的干燥品。主产于 河北正定、献县，天津，山东梁山、胶东，河南兰考、民权，江苏泗阳、盐城、 东台，安徽阜阳，山西...
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以上来源于: WordNet
N a whitish vitreous mineral that consists of anhydrous sodium sulphate and occurs in saline residues. Formula: Na2SO4 无水芒硝
So, it can be concluded that solution pervasion has great effect on mechanical characteristics of calcium thenardite rock salt .
因此，溶解渗透对钙芒硝盐岩的力学特性有着极大的影响。
Moreover, the uniaxial compressive deformation and damage of thenardite are different from other rocks during four deformation phases.
在单轴压缩变形破坏过程中，具有与普通岩石试件不同的四阶段性特征。
Through the testing and analysis, it is found that thenardite salt rock is a kind of soft rock, the strength of which is low and the deformation is distinct.
通过试验，发现无水芒硝岩盐是一种软岩，强度较低，变形较大。
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