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本文报导了在安徽当涂县釜山和江苏六合县塔山所发现的晶洞钠沸石,其质地纯净、晶体完好。通过化学分析(湿法)、光性和物性检测、形态观察、X 射线和电子衍射、红外光谱、DTA和 TGA等方法进行了系统的矿物学研究。 在本文中首次报导了钠沸石的电子衍射和在水热实验中的相转变情况。在水热条件下,钠沸石处在200℃、500bar下(6d)尚保持不变,仅结晶程度有所降低;375℃、500bar下(6d),出现以方沸石为主和少量钠霞石的混合相;550℃、1000bar下(6d),重结晶为六方钠霞石。
This article reports the geodune sodium zeolite found in Busan, Dangtu County, Anhui Province, and Tashan, Liuhe County, Jiangsu Province. The texture is pure and crystal is intact. The systematic mineralogical studies were carried out by means of chemical analysis (wet method), light and physical property detection, morphological observation, X-ray and electron diffraction, infrared spectroscopy, DTA and TGA. For the first time in this paper, the electron diffraction of sodium zeolite and the phase transition in hydrothermal experiments are reported. Under hydrothermal conditions, sodium zeolite remains unchanged at 500 ℃ (6d) at 200 ℃, only the degree of crystallinity is reduced. At 375 ℃, 500bar (6d), there are mainly zeolite and a few sodium nepheline Of the mixed phase; 550 ℃, 1000bar (6d), recrystallized hexasilite nepheline.