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Pottsite

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About PottsiteHide

The back wall of the cut is where the pottsite is found

Linka Mine, Spencer Hot Springs District, Lander Co., Nevada, USA
Formula:
(Pb3xBi4-2x)(VO4)4·H2O (0.8 < x < 1.0)
ideal form: (Pb3Bi)Bi(VO4)4·H2O
Colour:
Bright Yellow
Lustre:
Adamantine
Hardness:
Specific Gravity:
7.0
Crystal System:
Tetragonal
Name:
Named for type locality, Potts, Lander Co., Nevada
The only natural Pb-Bi vanadate known (unique combination of elements).
The Pb/Bi ratio varies in the range from 0.86 to 1.48.


Classification of PottsiteHide

Approved
Approval Year:
1988
8.CG.25

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
G : With large and medium-sized cations, RO4:H2O = 1:1
40.1.4.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
1 : AB(XO4)·xH2O
21.3.14

21 : Vanadates (and vanadates with arsenate or phosphate)
3 : Vanadates of Al, rare earths, Pb, V or Bi

Physical Properties of PottsiteHide

Adamantine
Colour:
Bright Yellow
Streak:
pale yellow
Hardness:
3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Density:
7.0 g/cm3 (Measured)    7.31 g/cm3 (Calculated)

Optical Data of PottsiteHide

Type:
Uniaxial (-)
RI values:
nω = 2.400 nε = 2.300
Max Birefringence:
δ = 0.100
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of PottsiteHide

Formula:
(Pb3xBi4-2x)(VO4)4·H2O (0.8 < x < 1.0)

ideal form: (Pb3Bi)Bi(VO4)4·H2O
IMA Formula:
(Pb3Bi)Bi(VO4)4 · H2O

Crystallography of PottsiteHide

Crystal System:
Tetragonal
Class (H-M):
4/m - Dipyramidal
Space Group:
I41/a
Setting:
I41/a
Cell Parameters:
a = 11.084 Å, c = 12.634 Å
Ratio:
a:c = 1 : 1.14
Unit Cell V:
1,552.15 ų (Calculated from Unit Cell)
Morphology:
Bipyramids or short stubby prisms.

Crystal structure details: (1) A site split into two partially occupied subsites; (2) distorted square antiprismatic coordination of Bi; (3) contains trace As and Cl; (4) isolated vanadate tetrahedra have common oxygen atoms with heavy metals -> double-layer units || (001), shifted from themselves by 1/2 b; (5) there are [(VO4)(H2O)]3- chains, separated in the (001) plane by rows of heavy metals, that extend in the [120] direction.
Comment:
Parameters from the recent refinement (Siidra et al., 2016): a=11.0839, c=12.6516

Type Occurrence of PottsiteHide

Synonyms of PottsiteHide

Other Language Names for PottsiteHide

German:Pottsit
Simplified Chinese:水钒铋铅矿
Spanish:Pottsita
Traditional Chinese:水釩鉍鉛礦

Common AssociatesHide

Associated Minerals Based on Photo Data:
Clinobisvanite18 photos of Pottsite associated with Clinobisvanite on mindat.org.
Bismutite2 photos of Pottsite associated with Bismutite on mindat.org.
Vanadinite1 photo of Pottsite associated with Vanadinite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.CG.05CassidyiteCa2Ni(PO4)2 · 2H2OTric.
8.CG.05CollinsiteCa2Mg(PO4)2 · 2H2OTric. 1 : P1
8.CG.05FairfielditeCa2Mn2+(PO4)2 · 2H2OTric. 1 : P1
8.CG.05GaititeCa2Zn(AsO4)2 · 2H2OTric.
8.CG.05MesseliteCa2Fe2+(PO4)2 · 2H2OTric. 1 : P1
8.CG.05ParabrandtiteCa2Mn2+(AsO4)2 · 2H2OTric.
8.CG.05β-RoseliteCa2Co(AsO4)2 · 2H2OTric.
8.CG.05TalmessiteCa2Mg(AsO4)2 · 2H2OTric.
8.CG.05HilliteCa2(Zn,Mg)(PO4)2 · 2 H2OTric. 1 : P1
8.CG.10BrandtiteCa2(Mn2+,Mg)(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10WendwilsoniteCa2Mg(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10ZincroseliteCa2Zn(AsO4)2 · 2H2OMon.
8.CG.10RruffiteCa2Cu(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.15FerrilotharmeyeriteCa(Fe3+,Zn)2(AsO4)2 · 2(OH,H2O)Mon. 2/m : B2/m
8.CG.15LotharmeyeriteCa(Zn,Mn3+)2(AsO4)2 · 2(H2O,OH)Mon. 2/m : B2/m
8.CG.15MawbyitePb(Fe3+,Zn)2(AsO4)2 · 2(OH,H2O)Mon.
8.CG.15MounanaitePbFe3+2(VO4)2(OH,F)2Mon. 2/m : B2/m
8.CG.15ThometzekitePbCu2+2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15TsumcoritePbZn2(AsO4)2 · 2H2OMon.
8.CG.15CobaltlotharmeyeriteCa(Co,Fe3+,Ni)2(AsO4)2 · 2(H2O,OH)Mon. 2/m : B2/m
8.CG.15CabalzariteCa(Mg,Al,Fe3+)2(AsO4)2(OH,H2O)2Mon. 2/m : B2/m
8.CG.15KrettnichitePbMn3+2(VO4)2(OH)2Mon. 2/m : B2/m
8.CG.15CobalttsumcoritePb(Co,Fe3+,Ni)2(AsO4)2 · 2(H2O,OH)Mon. 2/m : B2/m
8.CG.15NickellotharmeyeriteCa(Ni,Fe3+,Co)2(AsO4)2 · 2(H2O,OH)Mon. 2/m : B2/m
8.CG.15ManganlotharmeyeriteCaMn3+2(AsO4)2(OH)2Mon. 2/m : B2/m
8.CG.15Schneebergite(Bi3+,Ca)(Co,Ni,Fe3+)2(AsO4)2(OH,H2O)2Mon. 2/m : B2/m
8.CG.15Nickelschneebergite(Bi3+,Ca)(Ni,Co,Fe3+)2(AsO4)2 · 2(OH,H2O)Mon. 2/m : B2/m
8.CG.20GartrellitePb(Cu,Fe3+,Zn)2(AsO4,SO4)2 · 2(H2O,OH)Tric. 1 : P1
8.CG.20HelmutwinkleritePb(Zn,Cu)2(AsO4)2 · 2H2OTric.
8.CG.20ZincgartrellitePb(Zn,Fe3+,Cu)2(AsO4)2 · 2(H2O,OH)Tric. 1 : P1
8.CG.20RappolditePb(Co,Ni,Zn)2(AsO4)2 · 2H2OTric.
8.CG.20PhosphogartrellitePb(Cu,Fe3+)2(PO4,AsO4)2 · 2(H2O,OH)Tric.
8.CG.20LukrahniteCa(Cu,Zn)(Fe3+,Zn)(AsO4)2 · 2(H2O,OH)Tric. 1 : P1
8.CG.35NickeltalmessiteCa2Ni(AsO4)2 · 2H2OTric. 1 : P1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

21.3.1SteigeriteAl(VO4) · 3H2OMon. 2/m : P21/m
21.3.2Alvanite(Zn,Ni)Al4(V5+O3)2(OH)12 · 2H2OMon. 2/m : P21/m
21.3.3MetaschoderiteAl2(PO4)(VO4) · 6H2OMon. 2/m : P2/m
21.3.4SchoderiteAl2(PO4)(VO4) · 8H2OMon.
21.3.5SatpaeviteAl12V4+2V5+6O37 · 30H2O
21.3.6VanaliteNaAl8V10O38 · 30H2OMon.
21.3.7Wakefieldite-(Ce)Ce(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
21.3.7Wakefieldite-(Y)Y(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
21.3.8ChervetitePb2(V2O7)Mon.
21.3.9MottramitePbCu(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
21.3.10DescloizitePbZn(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
21.3.11ClinobisvaniteBi(VO4)Mon. 2/m
21.3.11DreyeriteBi(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
21.3.11PucheriteBi(VO4)Orth. mmm (2/m 2/m 2/m)
21.3.12SchumacheriteBi3(VO4)2O(OH)Tric.
21.3.13NamibiteCu(BiO)2(VO4)(OH)Tric. 1 : P1
21.3.15Duhamelite(Pb,Bi,Ca)Cu(VO4)(OH,O)Orth.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for PottsiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Williams, S.A. (1988) Pottsite, a new vanadate from Lander County, Nevada. Mineralogical Magazine: 52: 389-390.
Jambor, J.L., Puziewicz, J. (1989) New mineral names. American Mineralogist: 74: 500-505.
Frost, R.L., Henry, D.A., Weier, M.L., Martens, W. (2006) Raman spectroscopy of three polymorphs of BiVO4: clinobisvanite, dreyerite and pucherite, with comparisons to (VO4)3-bearing minerals: namibite, pottsite and schumacherite. Journal of Raman Spectroscopy: 37: 722-732.
Siidra, O., Kovrugin, V.M., Zaitsev, A.N., Turner, R., Shilovskikh, V., Spratt, J., Agakhanov, A.A. (2016) The crystal structure and composition of pottsite, (Pb3xBi4-2x)(VO4)4·H2O, 0.8 < x < 1.0. European Journal of Mineralogy: 28: 137-145.

Internet Links for PottsiteHide

Localities for PottsiteHide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Argentina
 
  • Córdoba
    • San Javier Department
      • Las Tapias
        • Cerro Achala
Frost, R. L., Henry, D. A., Weier, M. L., & Martens, W. (2006). Raman spectroscopy of three polymorphs of BiVO4: clinobisvanite, dreyerite and pucherite, with comparisons to (VO4) 3‐bearing minerals: namibite, pottsite and schumacherite. Journal of Raman Spectroscopy, 37(7), 722-732.
Germany
 
  • Bavaria
    • Lower Bavaria
      • Tittling
        • Matzersdorf
Blass, G., Habel, A. & Habel, M. (2004): Neufund von Pottsit aus Matzerdorf, Bayerischer Wald- der weltweit zweite Fundort für das seltene Mineral. Mineralien Welt 15 (1), 24-25
USA
 
  • Nevada
    • Churchill Co.
      • Chalk Mountain District
NBMG Spec. Pub. 31 Minerals of Nevada
    • Lander Co.
      • Spencer Hot Springs District
NBMG Spec. Pub. 31 Minerals of Nevada; Mineralogical Magazine 1988 52 : 389-390
Mineral and/or Locality  
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