The crystal structure of parahopeite was first determined by I. Kumbasar et al., and then the crystal structure refinement was done by G. Y. Chao. In their investigations, however, the intensities were collected by th...The crystal structure of parahopeite was first determined by I. Kumbasar et al., and then the crystal structure refinement was done by G. Y. Chao. In their investigations, however, the intensities were collected by the multiple-film of展开更多
The carbocernaite was first found in USSR by A. et al. Except its space group, the formula （Ce, Na, Sr, Ca）CO3, the lattice parameters （a=5.21, b=7.28, c=6.40） and the orthorhomic system were all given. In China L...The carbocernaite was first found in USSR by A. et al. Except its space group, the formula （Ce, Na, Sr, Ca）CO3, the lattice parameters （a=5.21, b=7.28, c=6.40） and the orthorhomic system were all given. In China Liang Youbin et al. reported that carbocernaitc was found in large scale in the rare earth deposit of Bayan Obo, Baotou, following its occurrence in Shandong Province first announced by Qian Dengfu in 1978.展开更多
D’ansite is a rare mineral in solt deposits. R. Gorgey described its existence briefly in Hal solt deposit in 1909. But he did not name it nor give its mineralogical data. H. Autenrieth and G. Braune got the crystal ...D’ansite is a rare mineral in solt deposits. R. Gorgey described its existence briefly in Hal solt deposit in 1909. But he did not name it nor give its mineralogical data. H. Autenrieth and G. Braune got the crystal of d’ansite by synthesis in 1958 and its physical properties were determined. He named this mineral 'd’ansite'. Its existence in nature was confirmed when the mineral was discovered in a drill core of the Tertiary strata in the Jianghan Plain and was first investigated by Zheng Jinping in 1972. Later Qu Yihua et al. reported the results of their study on d’ansite.展开更多
文摘The crystal structure of parahopeite was first determined by I. Kumbasar et al., and then the crystal structure refinement was done by G. Y. Chao. In their investigations, however, the intensities were collected by the multiple-film of
文摘The carbocernaite was first found in USSR by A. et al. Except its space group, the formula （Ce, Na, Sr, Ca）CO3, the lattice parameters （a=5.21, b=7.28, c=6.40） and the orthorhomic system were all given. In China Liang Youbin et al. reported that carbocernaitc was found in large scale in the rare earth deposit of Bayan Obo, Baotou, following its occurrence in Shandong Province first announced by Qian Dengfu in 1978.
文摘D’ansite is a rare mineral in solt deposits. R. Gorgey described its existence briefly in Hal solt deposit in 1909. But he did not name it nor give its mineralogical data. H. Autenrieth and G. Braune got the crystal of d’ansite by synthesis in 1958 and its physical properties were determined. He named this mineral 'd’ansite'. Its existence in nature was confirmed when the mineral was discovered in a drill core of the Tertiary strata in the Jianghan Plain and was first investigated by Zheng Jinping in 1972. Later Qu Yihua et al. reported the results of their study on d’ansite.
