simpsonite

The results show that the pearls mainly contain aragonites, with some commercially useless pearls having vaterites in addition to aragonites.

结果表明 ,浙江诸暨产三角帆蚌淡水珍珠的矿物组成主要为文石 ,在无商业价值的部分珍珠中存在六方碳钙石。

The FTIR spctra of biogenic vaterite minerals from the freshwater-cultured lacklustre pearls(FCLP) and eggshells of apple snail(EAS) were measured and analysed.

　淡水无光珍珠及苹果蜗牛卵壳中六方碳钙石的FTIR光谱各特征吸收带的波数位置基本相同,但它们的FTIR谱图样式特别是一些吸收带的相对强度有明显的变化。

It can be concluded that the porcelaneous layers are composed of vaterites with two kinds of microscopic morphology.

结果表明,珍珠表面的瓷质层由两种形貌完全不同的六方碳钙石组成。

The structure differences of the hexacelsian and the monoclinic celsian,and the phase transformation of them in BaO·Al2O3·SiO2(BAS) glass-ceramic are presented.

本文从六方钡长石和单斜钡长石的晶体结构差异出发,介绍了BaO·Al2O3·SiO2(BAS)系微晶玻璃中六方钡长石向单斜钡长石转变的研究进展,综述了促进相变的方法及其促进机理,指出了今后研究应关注的几个问题。