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Chervetite

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

Classification of Chervetite

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
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First Recorded Occurrence of Chervetite

Year of Discovery:
1963

Physical Properties of Chervetite

Hardness (Mohs):
2 - 2½

Crystallography of Chervetite

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

Optical Data of Chervetite

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

Chemical Properties of Chervetite

Formula:
Pb2(V2O7)
Essential elements:
All elements listed in formula:

Relationship of Chervetite to other Species

8.FA.05Blossiteα-Cu2(V2O7)
8.FA.10Ziesiteβ-Cu2(V2O7)
8.FA.15UM1999-17:O:PbVPb4(VO4)2O
8.FA.20Pyrocoproite(K,Na)2Mg(P2O7)
8.FA.20PyrophosphiteK2Ca(P2O7)
8.FA.25Petewilliamsite(Ni,Co)30(As2O7)15
21.3.1SteigeriteAl(VO4) · 3H2O
21.3.2Alvanite(Zn,Ni)Al4(V5+O3)2(OH)12 · 2H2O
21.3.3MetaschoderiteAl2(PO4)(VO4) · 6H2O
21.3.4SchoderiteAl2(PO4)(VO4) · 8H2O
21.3.5SatpaeviteAl12V24+V65+O37 · 30H2O
21.3.6VanaliteNaAl8V10O38 · 30H2O
21.3.7Wakefieldite-(Ce)Ce(VO4)
21.3.7Wakefieldite-(Y)Y(VO4)
21.3.9MottramitePbCu(VO4)(OH)
21.3.10DescloizitePb(Zn,Cu)(VO4)(OH)
21.3.11ClinobisvaniteBi(VO4)
21.3.11DreyeriteBi(VO4)
21.3.11PucheriteBi(VO4)
21.3.12SchumacheriteBi3(VO4)2O(OH)
21.3.13NamibiteCu(BiO)2(VO4)(OH)
21.3.14PottsiteHPbBi(VO4)2 · 2H2O
21.3.15Duhamelite(Pb,Bi,Ca)Cu(VO4)(OH,O)

Other Names for Chervetite

Name in Other Languages:

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.

References for Chervetite

Reference List:
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 Chervetite

Localities for Chervetite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
      • Příbram
        • Vrančice
[Lapis 1995, 12, p.13-24]
J.Hyrsl (1992)
Gabon
 
  • 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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