Plagionite Group
A group of related mineral species
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About Plagionite Group
Formula:
Pb2N-1(Pb1-xSbx)2(Sb1-xPbx)2Sb6S13+2N, where N = 1, 2, 3 or 4
The plagonite group comprises four lead antimony sulphides in a homologous series (Moëlo and Biagioni, 2020). The members are distinguished by the thickness of a galena (PbS) slab in the crystal structure. The general chemical formula is: Pb2N-1(Pb1-xSbx)2(Sb1-xPbx)2Sb6S13+2N.
Visually the four members are hard to distinguish (all usually form tabular crystals) and reliable analyses are advised.
Visually the four members are hard to distinguish (all usually form tabular crystals) and reliable analyses are advised.
Unique Identifiers
Mindat ID:
39078
Long-form identifier:
mindat:1:1:39078:7
GUID
(UUID V4):
(UUID V4):
d3e717e5-c98e-48af-9b53-f726ddae6064
Chemistry of Plagionite Group
Mindat Formula:
Pb2N-1(Pb1-xSbx)2(Sb1-xPbx)2Sb6S13+2N, where N = 1, 2, 3 or 4
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0010822 | Heteromorphite | Edenharter A (1980) Die kristallstruktur von heteromorphit, Pb7Sb8S19 Zeitschrift fur Kristallographie 151 193-202 |  | 1980 | 0 | 293 | |
| 0014753 | Heteromorphite | Edenharter A, Nowacki W (1975) Die kristallstruktur von heteromorphit Pb7Sb8S19 Neues Jahrbuch fur Mineralogie, Monatshefte 1975 193-195 | 1975 | 0 | 293 | ||
| 0010763 | Plagionite | Cho S A, Wuensch B J (1974) The crystal structure of plagionite, Pb5Sb8S17, the second member in the homologous series Pb3+2nSb8S15+2n Zeitschrift fur Kristallographie 139 351-378 | | 1974 | Wolfsberg, Harz, Germany | 0 | 293 |
| 0000427 | Semseyite | Kohatsu J J, Wuensch B J (1974) Semseyite (Pb9Sb8S21) and the crystal chemistry of the plagionite group, Pb3+2nSb8S15+2n American Mineralogist 59 1127-1127 | | 1974 | 0 | 293 |
CIF Raw Data - click here to close
Synonyms of Plagionite Group
Relationship of Plagionite Group to other Species
Group Members:
| Fülöppite | Pb3Sb8S15 | Mon. 2/m : B2/b |
| Heteromorphite | Pb7Sb8S19 | Mon. 2/m : B2/b |
| Plagionite | Pb5Sb8S17 | Mon. 2/m : B2/b |
| Semseyite | Pb9Sb8S21 | Mon. 2/m : B2/b |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Plagionite Group
mindat.org URL:
https://www.mindat.org/min-39078.html
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References for Plagionite Group
Reference List:
Moëlo, Yves, Biagioni, Cristian (2020) Contribution to the crystal chemistry of lead-antimony sulfosalts: systematic Pb-versus-Sb crossed substitution in the plagionite homologous series, Pb2N−1(Pb1−xSbx)2(Sb1−xPbx)2Sb6S13+2N. European Journal of Mineralogy, 32 (6) 623-635 doi:10.5194/ejm-32-623-2020
Săsar Mine, Săsar-Valea Roșie mining area, Baia Mare, Maramureș County, Romania