- Sep 28, 2019
- Sep 16, 2019
- Alpersite
- RRUFF Ideal Chemistry changed from "(Mg,Cu2+)S6+O4·7H2O" to "MgS6+O4·7H2O"
- IMA Ideal Chemistry changed from "(Mg,Cu)(SO4)·7H2O" to "Mg(SO4)·7H2O"
- Oct 13, 2017
- Alpersite
- IMA Ideal Chemistry changed from "(Mg,Cu2+)SO4·7H2O" to "(Mg,Cu)(SO4)·7H2O"
- Feb 23, 2015
- Alpersite
- RRUFF Ideal Chemistry changed from "(Mg,Cu2+)SO4·7H2O" to "(Mg,Cu2+)S6+O4·7H2O"
- Jun 19, 2012
- Feb 16, 2008
- Alpersite
- RRUFF Ideal Chemistry changed from "(Mg,Cu)SO4·7H2O" to "(Mg,Cu2+)SO4·7H2O"
- IMA Ideal Chemistry changed from "(Mg,Cu)SO4·7H2O" to "(Mg,Cu2+)SO4·7H2O"
- Apr 1, 2007
- Jun 30, 2006
- Alpersite
- New Mineral Entry
- Mineral Display Name changed to "Alpersite"
- RRUFF Ideal Chemistry changed to "(Mg,Cu)SO4·7H2O"
- IMA Ideal Chemistry changed to "(Mg,Cu)SO4·7H2O"
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