- Jul 22, 2021
- Sep 8, 2020
- Tsugaruite
- RRUFF Ideal Chemistry changed from "Pb28As15S50Cl" to "Pb2+28As3+15S2-50Cl"
- Oct 5, 2019
- Tsugaruite
- IMA Number changed from "IMA1997-010" to "IMA1997-010, IMA2019 s.p."
- Aug 18, 2019
- Tsugaruite
- RRUFF Ideal Chemistry changed from "Pb4As2S7" to "Pb28As15S50Cl"
- IMA Ideal Chemistry changed from "Pb4As2S7" to "Pb28As15S50Cl"
- Mineral Comment changed from to
- Oct 6, 2012
- May 25, 2006
- Tsugaruite
- IMA Ideal Chemistry changed to "Pb4As2S7"
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