| 刘长龄.变高岭石在自然界的发现[J].地质找矿论丛,1986,(2):70-76 |
| 变高岭石在自然界的发现 |
| THE FINDING OF NATURAL METAKAOLINITE |
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| DOI：10.6053/j.issn.1001-1412.1986.2. 008 |
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| 中文摘要: |
| 硅酸盐主要矿物原料高岭石的加热相变问题,是国内外实验矿物学与工艺界学者极为重视和久经研究的一个老大难课题,同主要放热反应一样,脱结构水的相变问题也没有彻底解决,主要有两种不同的意见,一为非品质混合物说(即为非品质Al2O3和SiO2的混合物),另为介稳定的化合物变高岭石说. |
| 英文摘要: |
| Metakaolinite(Al2O3·2SiO2)is an artificial mineral which is made by losing the textural water from kaolinite,The author(1963)discovered strong anisotropy of matakaolinite and 2V to which the metakaolinite found this time is similar So it is the first time to find the natural metakaolinite in the world.The mineral found in the New South Wales by F.C.Loughnan(1981)seems not to be a natural metakaolinite because,it has a differential thermal linear line at range of 0-1000℃without a exoth ermic peak about 1000℃.There is a natural high alumina-clay "grog" in Pingding County of Shanxi province.The author found the natural Kaolinite determined by polariscope,differential thermal analysis,X-ray analysis and chemical analysis The natural metakaolinite associated with corundum is formed from the high-Al clay by basalt-lava-thermal metamorphism(kaolinite-metakaolinite,diaspore-corundum). |
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