THE malachite green stain test has long been used as a means of identifying kaolinite, dickite, and nacrite 1. The quantitative aspect has not been dealt with adequately, and the method has never been ...
Attention is brought to the problem of studying colorless silicified woods. The utilization of the stains, Bismarck brown Y and Malachite green, is described. Malachite green is extremely good for ...
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