Plumbonacrite (original) (raw)
A valid IMA mineral species
About PlumbonacriteHide
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Colour:
Colorless to white
Name:
For the chemical composition ('plumbo') and the pearly lustre ('nacre').
A grandfathered species which was formerly not approved as a mineral. It was redefined and revalidated by the IMA in June 2012, with a newly defined type locality.
Plumbonacrite is closely related to hydrocerussite, but has a different chemical composition (less carbonate), unit cell and space group (P-3c1, Weil et al., unpublished data; note that the space group given in Krivovichev & Burns, 2000, is incorrect).
Plumbonacrite is also closely related to somersetite.
Visually very similar to Unnamed (Na-Pb Carbonate-Hydroxide II) (a slag phase).
Plumbonacrite has a narrow stability field (Taylor & Lopata, 1984).
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:3229:8
IMA Classification of PlumbonacriteHide
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IMA status notes:
Renamed by the IMA
IMA Formula:
Pb5(CO3)3O(OH)2
Approval history:
Renamed by IMA: 2012
Classification of PlumbonacriteHide
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5.BE.15
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
E : With Pb, Bi
16a.5.1.1
16a : ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
5 : Miscellaneous
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Pncr | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of PlumbonacriteHide
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Transparency:
Transparent, Translucent
Colour:
Colorless to white
Density:
7.07 g/cm3 (Measured)
Comment:
Measured value is for synthetic material.
Chemistry of PlumbonacriteHide
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Mindat Formula:
Pb5O(OH)2(CO3)3
Crystallography of PlumbonacriteHide
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Class (H-M):
3_m_ _(_32/m ) - Hexagonal Scalenohedral
Cell Parameters:
a = 9.0921 Å, b = 7 Å, c = 24.923(3) Å
Ratio:
a:b:c = 1.299 : 1 : 3.56
Morphology:
Thin hexagonal plates.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0014551 | Plumbonacrite | Krivovichev S V, Burns P C (2000) Crystal chemistry of basic lead carbonates II. Crystal structure of synthetic `plumbonacrite' Mineralogical Magazine 64 1069-1075 |  |
2000 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.26 Å | (8) |
| 3.98 Å | (3) |
| 3.357 Å | (7) |
| 2.953 Å | (4) |
| 2.619 Å | (10) |
| 2.235 Å | (4) |
| 1.699 Å | (5) |
Comments:
Similar to the data of hydrocerussite.
Geological EnvironmentHide
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Type Occurrence of PlumbonacriteHide
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General Appearance of Type Material:
Very minute scaly crystals, which unite to form thin flakes.
Place of Conservation of Type Material:
Associated Minerals at Type Locality:
Synonyms of PlumbonacriteHide
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Other Language Names for PlumbonacriteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 5.BE.X | Abellaite | NaPb2(CO3)2(OH) | Hex. 6_m_ m : P_63_m c |
|---|---|---|---|
| 5.BE.05 | Shannonite | Pb2O(CO3) | Orth. 222 : _P_212121 |
| 5.BE.10 | Hydrocerussite | Pb3(CO3)2(OH)2 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 5.BE.20 | Phosgenite | Pb2CO3Cl2 | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _P_4/m b m |
| 5.BE.25 | Bismutite | (BiO)2CO3 | Orth. m _m_2 : I m _m_2 |
| 5.BE.30 | Kettnerite | CaBiCO3OF | Orth. m m m _(_2/_m_2/_m_2/m ) : P m m n |
| 5.BE.35 | Beyerite | Ca(BiO)2(CO3)2 | Orth. m m m _(_2/_m_2/_m_2/m ) : I m m m |
| 5.BE.40 | Grootfonteinite | Pb3O(CO3)2 | Hex. 6_m_ m : P_63_m c |
| 5.BE.45 | Somersetite | Pb8O2(OH)2(CO3)5 | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c |
Other InformationHide
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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 PlumbonacriteHide
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References for PlumbonacriteHide
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Reference List:
Siidra, Oleg, Nekrasova, Diana, Depmeier, Wulf, Chukanov, Nikita, Zaitsev, Anatoly, Turner, Rick (2018) Hydrocerussite-related minerals and materials: structural principles, chemical variations and infrared spectroscopy. Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, 74 (2). 182-195 doi:10.1107/s2052520618000768
Localities for PlumbonacriteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 
- Good crystals or important locality for species. 
- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.