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Cavoite

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About CavoiteHide

Formula:
CaV4+3O7
Colour:
Colorless to pale olive green-brown, green-grey
Lustre:
Vitreous, Silky
Specific Gravity:
3.51 (Calculated)
Crystal System:
Orthorhombic
Name:
Named for its chemical composition, containing CAlcium, Vanadium and Oxygen.
This page provides mineralogical data about Cavoite.


Classification of CavoiteHide

Approved
Approval Year:
2001
4.HE.40

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
E : Phyllovanadates

Physical Properties of CavoiteHide

Vitreous, Silky
Transparency:
Transparent
Colour:
Colorless to pale olive green-brown, green-grey
Streak:
white
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
none
Density:
3.51 g/cm3 (Calculated)

Chemical Properties of CavoiteHide

Formula:
CaV4+3O7
IMA Formula:
CaV3O7

Crystallography of CavoiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Setting:
Pnma
Cell Parameters:
a = 10.42 Å, b = 5.28 Å, c = 10.34 Å
Ratio:
a:b:c = 1.973 : 1 : 1.958
Unit Cell V:
568.2 ų
Z:
4
Twinning:
none

Geological EnvironmentHide

Paragenetic Mode(s):

Type Occurrence of CavoiteHide

General Appearance of Type Material:
very rare radiated aggregates of strongly elongated prismatic to acicular crystals up to about 0.28 mm in length.
Place of Conservation of Type Material:
Type material is deposited in the collection of the Dipartimento per lo Studio del Territorio e delle sue Risorse (Dip.Te.Ris), Universita` di Genova, Italy.
Geological Setting of Type Material:
Metamorphosed manganese deposit
Associated Minerals at Type Locality:

Synonyms of CavoiteHide

Other Language Names for CavoiteHide

Russian:Кавоит

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Cavoite associated with CopperCu

Related Minerals - Nickel-Strunz GroupingHide

4.HE.05MelanovanaditeCa(V5+,V4+)4O10 · 5H2OTric. 1 : P1
4.HE.10ShcherbinaiteV5+2O5Orth. mmm (2/m 2/m 2/m) : Pmmn
4.HE.15HewettiteCaV6O16 · 9H2OMon. 2/m : P21/m
4.HE.15MetahewettiteCaV6O16 · 3H2OMon. 2/m
4.HE.20BarianditeAl0.6(V5+,V4+)8O20 · 9H2OMon.
4.HE.20Bokite(Al,Fe3+)1.3(V5+,V4+,Fe3+)8O20 · 7.4H2OMon.
4.HE.20Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2OMon.
4.HE.20Fernandinite(Ca,K)(V5+,V4+,Fe2+)8O20 · 10H2OMon. 2/m : B2/m
4.HE.20Straczekite(Ca,K,Ba)(V5+,V4+)8O20 · 3H2OMon.
4.HE.25HäggiteV3+V4+O2(OH)3Mon.
4.HE.30DoloresiteV4+3O4(OH)4Mon. 2/m
4.HE.35DuttoniteV4+O(OH)2Mon. 2/m

Fluorescence of CavoiteHide

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 CavoiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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.
Jambor, J.L., Roberts, A.C. (2003) New mineral names. American Mineralogist: 88: 1626-1629.
Mandarino, J.A. (2003) New minerals. The Canadian Mineralogist: 41: 1309-1319.

Internet Links for CavoiteHide

Localities for CavoiteHide

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.
Australia
 
  • Western Australia
    • Laverton Shire
      • Mount Weld Station
Handbook of Mineralogy
Brazil
 
  • Minas Gerais
    • Poços de Caldas alkaline complex
      • Poços de Caldas
Handbook of Mineralogy
Burundi
 
  • Bujumbura Rural Province
Handbook of Mineralogy
Germany
 
  • Rhineland-Palatinate
    • Mayen-Koblenz
      • Mayen
        • Ettringen
Handbook of Mineralogy
Italy (TL)
 
  • Liguria
    • Genoa
      • Ne
        • Reppia
          • Monte Copello
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.
Kyrgyzstan
 
  • Osh Region
    • Sokh Valley
Handbook of Mineralogy
Mexico
 
  • Durango
    • Gómez Palacio Municipality
      • Sierra de Bermejillo
Handbook of Mineralogy
Nigeria
 
  • Nasarawa
Handbook of Mineralogy
Norway
 
  • Aust-Agder
    • Iveland
Handbook of Mineralogy
  • Nordland
Handbook of Mineralogy
  • Telemark
    • Drangedal
      • Tørdal
Handbook of Mineralogy
 
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