- Jul 27, 2023
- May 10, 2021
- Piemontite
- RRUFF Ideal Chemistry changed from "Ca2Mn3+Al2(Si2O7)(SiO4)O(OH)" to "Ca2(Al2Mn3+)(Si2O7)(SiO4)O(OH)"
- Oct 13, 2017
- Piemontite
- IMA Ideal Chemistry changed from "Ca2Mn3+Al2(Si2O7)(SiO4)O(OH)" to "Ca2(Al2Mn3+)[Si2O7][SiO4]O(OH)"
- Oct 21, 2008
- Oct 15, 2008
- Mar 24, 2008
- Piemontite
- RRUFF Ideal Chemistry changed from "Ca2(Al2Mn3+)[Si2O7][SiO4]O(OH)" to "Ca2Mn3+Al2(Si2O7)(SiO4)O(OH)"
- IMA Ideal Chemistry changed from "Ca2(Al2Mn3+)[Si2O7][SiO4]O(OH)" to "Ca2Mn3+Al2(Si2O7)(SiO4)O(OH)"
- Dec 14, 2006
- Piemontite
- RRUFF Ideal Chemistry changed from "(Ca,Pb,Ce)2(Mn3+,Fe3+)Al2(Si2O7)(SiO4)(O,OH)2" to "Ca2(Al2Mn3+)[Si2O7][SiO4]O(OH)"
- IMA Ideal Chemistry changed from "(Ca,Pb,Ce)2(Mn3+,Fe3+)Al2(Si2O7)(SiO4)(O,OH)2" to "Ca2(Al2Mn3+)[Si2O7][SiO4]O(OH)"
- May 10, 2006
- Piemontite
- IMA Ideal Chemistry changed to "(Ca,Pb,Ce)2(Mn3+,Fe3+)Al2(Si2O7)(SiO4)(O,OH)2"
|