摘要
本文提出了自然金-银类质同象系列矿物的晶胞参数与金、银原子数百分比成二次函数关系,推导出了表示二者之间函数关系的方程式。利用该方程式,可以用金原子数百分比计算出晶胞参数,反之亦然。并且从金、银二者的电负性出发,对a值的变化作了解释。
The author shows clearly that in the native gold-silver isomorphous seriesthe mineral cell parameters and the atomic number of Au or Ag show a quad-ratic functional relationship. The equation expressing the functional relation-ship between them is given as follows. α=0. 00218667x^2-0. 00294667x+0. 40862 (nm)where α is the edge length of α unit cell and x is the atomic number percent-age of Au. By using the quadratic equation, the cell parameters can be calcu-lated from the atomic number percentage of Au or Ag and vice versa. On the basis of the electronegative divergence between Au and Ag, thevariation of α is explained.
出处
《矿物学报》
CAS
CSCD
北大核心
1993年第3期250-253,共4页
Acta Mineralogica Sinica
关键词
金
银
矿物
晶胞
参数
native gold-silver isomorphous series minerals
cell parameter
atomic number of Au
electronegativity
