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Colorless to pale olive ...
From chemical composition.
This page provides mineralogical data about Cavoite.

Classification of Cavoite

Approval Year:

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
E : Phyllovanadates URL:
Please feel free to link to this page.

Type Occurrence of Cavoite

Physical Properties of Cavoite

Vitreous, Silky
Diaphaneity (Transparency):
Colorless to pale olive green-brown, green-grey

Crystallography of Cavoite

Crystal System:
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Cell Parameters:
a = 10.42Å, b = 5.28Å, c = 10.34Å
a:b:c = 1.973 : 1 : 1.958
Unit Cell Volume:
V 568.2 ų

Chemical Properties of Cavoite

All elements listed in formula:

Relationship of Cavoite to other Species

4.HE.05MelanovanaditeCa(V5+,V4+)4O10 · 5H2O
4.HE.15HewettiteCaV6O16 · 9H2O
4.HE.15MetahewettiteCaV6O16 · 3H2O
4.HE.20BarianditeAl0.6(V5+,V4+)8O20 · 9H2O
4.HE.20Bokite(Al,Fe3+)1.3(V5+,V4+,Fe3+)8O20 · 7.4H2O
4.HE.20Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
4.HE.20Fernandinite(Ca,K)(V5+,V4+,Fe2+)8O20 · 10H2O
4.HE.20Straczekite(Ca,K,Ba)(V5+,V4+)8O20 · 3H2O

Other Names for Cavoite

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 Cavoite

Reference List:
Bouloux, J.C. & Galy, J. (1973): Les hypovanadates MV3O7 (M = Ca, Sr, Cd). Structure cristalline de CaV3O7. Acta Crystallographica, B29, 269-275.

Basso R., Lucchetti G., Martinelli A., Palenzona A. (2002): Cavoite, CaV3O7,a new mineral from the Gambatesa mine, northern Apennines, Italy. European Journal of Mineralogy, 15, 181-184.

Palenzona, A. & Martinelli, A. (2003): Cavoite: CaV3O7 nuova specie dalla miniera di Gambatesa (Liguria). Rivista Mineralogica Italiana, 2003, 29-31.

Internet Links for Cavoite

Localities for Cavoite

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.
Italy (TL)
  • Liguria
    • Genova Province
      • Ne
        • Graveglia Valley
          • Reppia
R. Basso, G. Lucchetti, A. Martinelli, A. Palenzona: "Cavoite, CaV3O7, a new mineral from the Gambatesa mine, northern Apennines, Italy", Eur. J. Mineral. 15:181-184 (2002); Palenzona A., Martinelli A., 2003. Cavoite: CaV3O7, nuova specie dalla miniera di Gambatesa (Liguria). Rivista Mineralogica Italiana, 27(1), 29-31.
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