四川荣县紫砂矿物资源的发现及其矿物岩石学特征

发布时间：2019-03-02 13:15

【摘要】：为了寻找新的紫砂矿物资源,为荣县陶土的高附加值利用以及紫砂矿物原料研究与应用提供科学依据,采用多种现代岩矿测试分析技术,对比研究了四川荣县陶土与宜兴紫砂泥料的矿物岩石学特征,结果表明:荣县陶土的化学成分平均含量是,w(Si O2)64.29%,w(Al2O3)22.72%,w(Fe2O3)6.51%,w(K2O)3.81%,四者之和达97.33%,而有害成分Ca O含量低,w(Ca O)0.35%;矿物成分石英35%~40%,高岭石25%~30%,伊利石30%~35%,赤铁矿3%~5%;结构构造主要为块状构造,粉砂泥质结构,石英分布均匀,颗粒大小为10~250μm;热效应特征是,平均热失重为4.99%,脱羟温度515℃左右。荣县陶土这些矿物岩石学特征都与宜兴紫砂矿物原料中的紫泥相同或相似,有可能作为一种优质的紫砂矿物资源。另外,荣县陶土中的淡绿色部分和紫红色部分分别与宜兴绿泥和朱泥有相似之处。
[Abstract]:In order to find new mineral resources of purple sand and provide scientific basis for the utilization of high added value of clay and the research and application of raw materials of purple sand minerals, a variety of modern rock and mineral testing and analysis techniques are adopted. The mineral petrological characteristics of Rongxian clay and Yixing Zisha mud were comparatively studied. The results showed that the average chemical composition of Rongxian clay was 64.29% of, w (Si O2, 22.72% of Al2O3, 6.51% of Fe2O3, and the average chemical composition of the clay was 64.29%, w (Al2O3) 22.72%, w (Fe2O3) 6.51%, respectively. W (K2O) 3.81%, the sum of the four reached 97.33%, while the harmful component Ca O content was lower than, w (Ca O) 0.35%; The mineral composition is quartz 35% ~ 40%, kaolinite 25% ~ 30%, Illite 30% ~ 35%, hematite 3% ~ 5%, the structure is mainly massive structure, silty mud structure, quartz distribution is uniform, the particle size is 10 ~ 250 渭 m; The characteristic of thermal effect is that the average weight loss is 4.99% and the temperature of dehydroxylation is about 515 鈩，

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