- Jun 2, 2019
- Ringwoodite
- IMA Ideal Chemistry changed from "Mg2(SiO4)" to "SiMg2O4"
- Oct 13, 2017
- Ringwoodite
- IMA Ideal Chemistry changed from "Mg2SiO4" to "Mg2(SiO4)"
- Apr 9, 2014
- May 27, 2007
- Ringwoodite
- RRUFF Ideal Chemistry changed from "(Mg,Fe)2SiO4" to "Mg2SiO4"
- Apr 12, 2007
- Ringwoodite
- IMA Ideal Chemistry changed from "(Mg,Fe)2SiO4" to "Mg2SiO4"
- May 14, 2006
- Ringwoodite
- IMA Ideal Chemistry changed to "(Mg,Fe)2SiO4"
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