mineral association

The features of paleokarst related U deposits are: with a typical low middle temperature hydrothermal mineral association and obvious stages of mineralizing veins, and the uranium mainly in pitchblende that has the typomorphic characteristics of hydrothermal genesis.

与古岩溶有关铀矿床则出现典型低中温热液矿物组合，矿化脉体期次分明，矿石中铀基本呈可见状沥青矿存在，沥青铀矿具有热液成因标型。

The clay mineral association and characteristics in the Shennongjia mountain area

神农架自然保护区土壤的研究Ⅲ.神农架垂直带土壤粘粒矿物组合及其特点

Changes of clay mineral association after HGMS for main zonal soils in central and southern China were investigated by means of XRD and chemical analytic methods.

以我国中南地区几种主要地带性土壤为材料，比较了物理、化学方法的浓缩效果，结合X－射线分析，探讨了高梯度磁场分选（HGMS）后土壤胶体的矿物类型、氧化铁种类的变化。

Besides sapphire, zircon and almandine are produced in Minxi, Fujian, which form gem mineral association.

除蓝宝石之外, 该矿床还产有锆石,镁铝榴石, 形成一个有一定规模的宝石矿物组合.

The major mineral association in keratophyre rocks from Donggouba area is actinolite + chlorite + epidote + pumpellyite + albite.

东沟坝角斑岩中主要共生矿物组合为阳起石+绿泥石+绿帘石十绿纤石+钠长石.