Effect of soil composition analysis by X-ray diffraction method using [2] found that the red clay is the main element is the khwot. Best white clay is the main element is the concept of the lao Heritage Hotel Monte, characteristics of the graph will differ, the obvious Figure 4.And from the thaaion cache the quantity analysis of the extraction of metals from the soil. I found that thangot commercial นยว Kinmen below clay with Ca ++. In high quantities.Than Na +, K + and Mg ++, it held that a white clay that is found is Calcium Montmorillonite type clay minerals.
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