- Sep 4, 2020
- Semseyite
- RRUFF Ideal Chemistry changed from "Pb9Sb8S21" to "Pb2+9Sb3+8S2-21"
- Jan 5, 2012
- Apr 12, 2007
- Semseyite
- IMA Ideal Chemistry changed to "Pb9Sb8S21"
- Apr 28, 2006
- Semseyite
- RRUFF Ideal Chemistry changed from "Pb9Sb8S_21" to "Pb9Sb8S21"
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