- Feb 14, 2021
- Oct 13, 2017
- Norbergite
- IMA Ideal Chemistry changed from "Mg3SiO4F2" to "Mg3(SiO4)F2"
- Nov 24, 2008
- Nov 21, 2008
- May 26, 2007
- Norbergite
- RRUFF Ideal Chemistry changed from "Mg3(SiO4)(F,OH)2" to "Mg3SiO4F2"
- Apr 10, 2007
- Norbergite
- IMA Ideal Chemistry changed to "Mg3SiO4F2"
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