Plumbophyllite
A valid IMA mineral species
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About Plumbophyllite
Formula:
Pb2Si4O10 · H2O
Colour:
pale blue to very light blue-green
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.96
Crystal System:
Orthorhombic
Name:
The mineral is named for its essential Pb content and its silicate sheet structure (Greek φύλλον = leaf).
Unique Identifiers
Mindat ID:
38703
Long-form identifier:
mindat:1:1:38703:9
GUID
(UUID V4):
(UUID V4):
ce351313-c0ed-4302-94d2-e139297f0419
IMA Classification of Plumbophyllite
Classification of Plumbophyllite
9.EA.85
9 : SILICATES (Germanates)
E : Phyllosilicates
A : Single nets of tetrahedra with 4-, 5-, (6-), and 8-membered rings
9 : SILICATES (Germanates)
E : Phyllosilicates
A : Single nets of tetrahedra with 4-, 5-, (6-), and 8-membered rings
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Pbp | 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 Plumbophyllite
Vitreous
Transparency:
Translucent
Colour:
pale blue to very light blue-green
Streak:
white
Hardness:
5 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{100}
{100}
Fracture:
Splintery
Density:
3.96(5) g/cm3 (Measured) 3.940 g/cm3 (Calculated)
Optical Data of Plumbophyllite
Type:
Biaxial (+)
RI values:
nα = 1.674(2) nβ = 1.684(2) nγ = 1.708(2)
2V:
Measured: 66° , Calculated: 66.5°
Max Birefringence:
δ = 0.034
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
Strong r > v dispersion
Pleochroism:
Non-pleochroic
Chemistry of Plumbophyllite
Mindat Formula:
Pb2Si4O10 · H2O
Elements listed:
Crystallography of Plumbophyllite
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbcn
Cell Parameters:
a = 13.2083 Å, b = 9.7832 Å, c = 8.6545 Å
Ratio:
a:b:c = 1.35 : 1 : 0.885
Unit Cell V:
1,118.33 ų (Calculated from Unit Cell)
Morphology:
Plumbophyllite forms prismatic crystals, elongate on c, with wedge-shaped terminations
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
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Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
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View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
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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) |
|---|---|---|---|---|---|---|---|
| 0004972 | Plumbophyllite | Kampf A R, Rossman G R, Housley R M (2009) Plumbophyllite, a new species from the Blue Bell claims near Baker, San Bernardino County, California American Mineralogist 94 1198-1204 |  | 2009 | Blue Bell claims near Baker, San Bernardino County, California, USA | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.883 Å | (97) |
| 6.625 Å | (35) |
| 4.897 Å | (38) |
| 3.623 Å | (100) |
| 3.166 Å | (45) |
| 2.938 Å | (57) |
| 2.555 Å | (51) |
| 2.243 Å | (50) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Plumbophyllite
Place of Conservation of Type Material:
Natural History Museum of Los Angeles County, catalog numbers 58829, 58830, 58831, and 58832 (cotypes)
Geological Setting of Type Material:
Oxidation zone
Associated Minerals at Type Locality:
Synonyms of Plumbophyllite
Common Associates
Associated Minerals Based on Photo Data:
| 7 photos of Plumbophyllite associated with Quartz | SiO2 |
| 6 photos of Plumbophyllite associated with Mimetite | Pb5(AsO4)3Cl |
| 6 photos of Plumbophyllite associated with Opal-AN | SiO2 · nH2O |
| 4 photos of Plumbophyllite associated with Plumbotsumite | Pb13(CO3)6(Si10O27) · 3H2O |
| 2 photos of Plumbophyllite associated with Cerussite | PbCO3 |
| 1 photo of Plumbophyllite associated with Perite | PbBiClO2 |
| 1 photo of Plumbophyllite associated with Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| 1 photo of Plumbophyllite associated with Opal | SiO2 · nH2O |
| 1 photo of Plumbophyllite associated with Fluorite | CaF2 |
Related Minerals - Strunz-mindat Grouping
| 9.EA. | Bussyite-(Y) | (Y,REE,Ca)3(Na,Ca)6MnSi9Be5(O,OH,F)34 |
| 9.EA. | Fluorapophyllite-(NH₄) | NH4Ca4(Si8O20)F · 8H2O |
| 9.EA. | Hydroxymcglassonite-(K) | KSr4Si8O20(OH) · 8H2O |
| 9.EA.05 | Cuprorivaite | CaCuSi4O10 |
| 9.EA.05 | Gillespite | BaFe2+Si4O10 |
| 9.EA.05 | Effenbergerite | BaCuSi4O10 |
| 9.EA.05 | Wesselsite | SrCuSi4O10 |
| 9.EA.07 | Fluorapophyllite-(Cs) | CsCa4(Si8O20)F · 8H2O |
| 9.EA.10 | Ekanite | Ca2ThSi8O20 |
| 9.EA.15 | Fluorapophyllite-(K) | KCa4(Si8O20)(F,OH) · 8H2O |
| 9.EA.15 | Hydroxyapophyllite-(K) | KCa4(Si8O20)(OH,F) · 8H2O |
| 9.EA.15 | Fluorapophyllite-(Na) | NaCa4(Si8O20)F · 8H2O |
| 9.EA.20 | Magadiite | Na2Si14O29 · 11H2O |
| 9.EA.25 | Dalyite | K2ZrSi6O15 |
| 9.EA.25 | Davanite | K2TiSi6O15 |
| 9.EA.30 | Sazhinite-(Ce) | Na2CeSi6O14 · 6H2O |
| 9.EA.30 | Sazhinite-(La) | Na3La[Si6O15] · 2H2O |
| 9.EA.35 | Armstrongite | CaZr[Si6O15] · 3H2O |
| 9.EA.40 | Okenite | Ca10Si18O46 · 18H2O |
| 9.EA.45 | Nekoite | Ca3Si6O15 · 7H2O |
| 9.EA.45 | Perettiite-(Y) | Y2Mn4FeSi2B8O24 |
| 9.EA.45 | Badakhshanite-(Y) | Y2Mn4Al(Si2B7BeO24) |
| 9.EA.47 | Shlykovite | KCa[Si4O9(OH)] · 3H2O |
| 9.EA.50 | Cavansite | Ca(VO)Si4O10 · 4H2O |
| 9.EA.50 | Diegogattaite | Na2CaCu2Si8O20 · H2O |
| 9.EA.52 | Yangite | PbMnSi3O8 · H2O |
| 9.EA.55 | Pentagonite | Ca(VO)Si4O10 · 4H2O |
| 9.EA.60 | Penkvilksite | Na4Ti2Si8O22 · 4H2O |
| 9.EA.60 | Tumchaite | Na2Zr(Si4O11) · 2H2O |
| 9.EA.65 | Nabesite | Na2BeSi4O10 · 4H2O |
| 9.EA.70 | Ajoite | (K,Na)Cu7AlSi9O24(OH)6 · 3H2O |
| 9.EA.75 | Zeravshanite | Na2Cs4Zr3[Si18O45]*2H2O |
| 9.EA.80 | Bussyite-(Ce) | (Ce,REE)3(Na,H2O)6MnSi9Be5(O,OH)30F4 |
Fluorescence of Plumbophyllite
None
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 Plumbophyllite
mindat.org URL:
https://www.mindat.org/min-38703.html
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References for Plumbophyllite
Reference List:
Kampf, A. R., Rossman, G. R., Housley, R. M. (2009) Plumbophyllite, a new species from the Blue Bell claims near Baker, San Bernardino County, California. American Mineralogist, 94 (8) 1198-1204 doi:10.2138/am.2009.3156
minerals.gps.caltech.edu (n.d.) http://minerals.gps.caltech.edu/Manuscripts/2009/Plumbophyllite/Index.html
Localities for Plumbophyllite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Australia | |
| R Bottrill (unpub data) |
USA (TL) | |
| Kampf et al. (2009) +1 other reference |
| Collected by and in the collection of ... |
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Blue Bell Mine, Zzyzx, Soda Mountains, Silver Lake Mining District, San Bernardino County, California, USA