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Chervetite

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Formula:
Pb2(V2O7)
Hardness:
2 - 2½
Crystal System:
Monoclinic
Name:
For French mineralogist, Jean Chervet (1904-62).
This page provides mineralogical data about Chervetite.


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Classification of ChervetiteHide

Approved
8.FA.15

8 : PHOSPHATES, ARSENATES, VANADATES
F : Polyphosphates, Polyarsenates, [4]-Polyvanadates
A : Polyphosphates, etc., without OH and H2O; dimers of corner-sharing RO4 tetrahedra.
38.5.5.1

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
5 : Miscellaneous
21.3.8

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

Physical Properties of ChervetiteHide

Hardness:
2 - 2½ on Mohs scale

Optical Data of ChervetiteHide

Type:
Biaxial (-)
Dispersion:
r > v very strong

Chemical Properties of ChervetiteHide

Formula:
Pb2(V2O7)
IMA Formula:
Pb2V5+2O7

Crystallography of ChervetiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 13.3 Å, b = 7.14 Å, c = 7.08 Å
β = 106°
Ratio:
a:b:c = 1.863 : 1 : 0.992
Unit Cell V:
646.29 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.93 (F)
4.32 (mF)
3.569 (mF)
3.441 (FFF)
3.428 (FFF)
3.206 (FF)
3.081 (F)
(

Type Occurrence of ChervetiteHide

Other Language Names for ChervetiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Francevillite30 photos of Chervetite associated with Francevillite on mindat.org.
Curienite18 photos of Chervetite associated with Curienite on mindat.org.
Mounanaite7 photos of Chervetite associated with Mounanaite on mindat.org.
Čechite4 photos of Chervetite associated with Čechite on mindat.org.
Hedyphane2 photos of Chervetite associated with Hedyphane on mindat.org.
Curienite-Francevillite Series2 photos of Chervetite associated with Curienite-Francevillite Series on mindat.org.
Duttonite1 photo of Chervetite associated with Duttonite on mindat.org.
Vanuralite1 photo of Chervetite associated with Vanuralite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.FA.05Blossiteα-Cu2(V2O7)Orth. mm2 : Fdd2
8.FA.10Ziesiteβ-Cu2(V2O7)Mon.
8.FA.15UM1999-17:O:PbVPb4(VO4)2O
8.FA.20Pyrocoproite(K,Na)2Mg(P2O7)Mon.
8.FA.20PyrophosphiteK2Ca(P2O7)Mon.
8.FA.25Petewilliamsite(Ni,Co)30(As2O7)15Mon. 2 : B2

Related Minerals - Dana Grouping (8th Ed.)Hide

38.5.5.2Ziesiteβ-Cu2(V2O7)Mon.

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
21.3.9MottramitePbCu(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
21.3.14Pottsite(Pb3xBi4-2x)(VO4)4·H2O (0.8 < x < 1.0)Tet. 4/m : I41/a
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 ChervetiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bariand, P., Chantret, F., Pouget, R. and Rimsky, A. (1963): Une nouvelle éspèce minérale: la chervetite, pyrovanadate de plomb Pb2V2O7. Bull. Soc. Franc. Minéral. Cristallogr. 86, 117-120. (in French).
American Mineralogist: 48: 1416.
Shannon, R. D. & Calvo, C. (1973): Refinement of the crystal structure of synthetic chervetite, Pb2V2O7. Can. J. Chem. 51, 70-76.
Bulletin de Mineralogie: 90: 279-284.

Internet Links for ChervetiteHide

Localities for ChervetiteHide

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.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
      • Příbram
        • Vrančice
[Lapis 1995, 12, p.13-24]
J.Hyrsl (1992)
Gabon (TL)
 
  • Haut-Ogooué Province
    • Franceville
Bull.Soc.fr.Min.Crist.(1963) 86, 117-120
Germany
 
  • Lower Saxony
    • Harz
      • St Andreasberg District
No reference listed
USA
 
  • Michigan
    • Baraga Co.
      • Huron River
Rocks & Minerals 82:298-308
  • Nevada
    • Clark Co.
      • Spring Mts
        • Goodsprings District
NBMG Spec. Pub. 31 Minerals of Nevada
Mineral and/or Locality  
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