【摘要】 作者在我国福建省上杭紫金山铜矿中发现了一种具有页片构造的Cu S矿物。其基质相的化学式可表示为Cu1.756S ,与 1 969年在日本发现的斜方蓝辉铜矿的化学式一致 ,这是该矿物在我国的首次发现 ;该矿物页片相的化学式可表示为Cu1.684 S ,是笔者未曾查到有人曾描述过的一种新的Cu S矿物相。该矿物基质相和页片相混合的X射线衍射图谱上的绝大多数峰与合成斜方蓝辉铜矿的衍射峰可对应。由此 ,笔者认为上述成分略有差异的连生的两相晶体结构是相像的 ,只是Cu的缺位有所不同。根据两相混合的X射线粉末衍射图谱得到的晶胞参数为 :a=0 .787( 2 ) ,b=0 .785( 4) ,c=1 .1 0 8( 4)nm。该矿物页片相加温至60℃以上时会变成含Cu更低的新物相。笔者在文中讨论了这种具页片构造的Cu S矿物的形成机理。更多还原

【Abstract】 A Cu S mineral with lamellar texture was found in the Zijinshan Copper Mine, Shanghang County, Fujian Province of China. Its matrix phase can be expressed as Cu 1.756 S in chemical formula, which is consistent with anilite discovered in Japan in 1969. It is the first discovery in China. The lamellar phase can be represented by Cu 1.684 S, which is a new mineral phase never documented. The X ray diffraction data of the matrix and lamellae are corresponding to those of synthesized anilite. Thus the authors proposed that the two intergrown phases with little diversity in composition are similar in crystal structure, but the copper cations are variable in vacancy. According to the X ray powder diffractograms of the matrix and lamellae, the cell dimensions are modified: a=0.787(2); b=0.785(4); c=1.108(4)nm. The phase of lamellae will change into a new phase containing less Cu when it is heated to 60℃ or higher. The authors discussed the genesis of the Cu S mineral with lamellar texture.更多还原