射线衍射分析表示该类化合物均属斜方晶系。
The X ray diffraction exhibited that this type of the compounds was monoclinic system.
车轮矿晶体，属斜方晶系，呈短柱状和板状，性脆，具有金属光泽，常呈钢灰色至暗铅灰色。
Bournonite crystals belong to the orthorhombic form of short columnar and plate, brittle, with metallic luster, often Chenggang grey to dark grey.
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