- Oct 13, 2017
- Hafnon
- IMA Ideal Chemistry changed from "HfSiO4" to "Hf(SiO4)"
- Mar 5, 2015
- Hafnon
- RRUFF Ideal Chemistry changed from "HfSiO4" to "Hf4+SiO4"
- Nov 2, 2012
- Hafnon
- Mineral Comment changed from to
- Jun 29, 2006
- Hafnon
- IMA Ideal Chemistry changed to "HfSiO4"
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