- Jul 23, 2020
- Caysichite-(Y)
- IMA Number changed from "IMA1973-044" to "IMA1973-044, IMA1987 s.p."
- Oct 13, 2017
- Caysichite-(Y)
- IMA Ideal Chemistry changed from "(Ca,Yb,Er)4Y4Si8O20(CO3)6(OH)·7H2O" to "(Ca,Yb,Er)4Y4(Si8O20)(CO3)6(OH)·7H2O"
- Sep 5, 2012
- Jun 27, 2006
- Caysichite-(Y)
- IMA Ideal Chemistry changed to "(Ca,Yb,Er)4Y4Si8O20(CO3)6(OH)·7H2O"
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