- Oct 13, 2017
- Cuspidine
- IMA Ideal Chemistry changed from "Ca4(Si2O7)F2" to "Ca8(Si2O7)2F4"
- Apr 16, 2013
- Cuspidine
- RRUFF Ideal Chemistry changed from "Ca4Si2O7F2" to "Ca4(Si2O7)F2"
- IMA Ideal Chemistry changed from "Ca4Si2O7F2" to "Ca4(Si2O7)F2"
- Aug 9, 2009
- Apr 5, 2007
- Cuspidine
- IMA Ideal Chemistry changed to "Ca4Si2O7F2"
- RRUFF Ideal Chemistry changed from "Ca4Si2O7(F,OH)2" to "Ca4Si2O7F2"
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