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Fervanite

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About FervaniteHide

Formula:
Fe3+4V5+4O16 · 5H2O
Colour:
Golden brown, yellow-brown, pale green
Specific Gravity:
3.28
Crystal System:
Monoclinic
Name:
In allusion to its composition, containing both iron (Latin = FERrum) and VANadium.
This page provides mineralogical data about Fervanite.


Classification of FervaniteHide

Approved, 'Grandfathered' (first described prior to 1959)
4.HG.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
G : Unclassified V oxides
47.3.4.1

47 : VANADIUM OXYSALTS
3 : Hydrated Normal Vanadium Oxysalts
21.4.23

21 : Vanadates (and vanadates with arsenate or phosphate)
4 : Vanadates of U, Mn, Fe or Ni

Physical Properties of FervaniteHide

Comment:
Lustre brilliant
Colour:
Golden brown, yellow-brown, pale green
Density:
3.28 g/cm3 (Measured)    

Optical Data of FervaniteHide

Type:
Biaxial (-)
RI values:
nα = 2.186 nβ = 2.222 nγ = 2.224
2V:
Calculated: 26°
Max Birefringence:
δ = 0.038
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
relatively strong

Chemical Properties of FervaniteHide

Formula:
Fe3+4V5+4O16 · 5H2O

Crystallography of FervaniteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 9.02 Å, c = 6.65 Å
β = 103.33°
Ratio:
a:c = 1 : 0.737
Unit Cell V:
0.00 ų (Calculated from Unit Cell)
Morphology:
Crystals fibrous, elongated [001] and flattened {010}; parallel aggregates.
Comment:
Crystal system "probable."

Type Occurrence of FervaniteHide

General Appearance of Type Material:
Impregnations.
Place of Conservation of Type Material:
Harvard University, Cambridge, Massachusetts, USA: #91457. U.S. National Museum of Natural History, Washington, D.C., USA: #96420, 96421, & 97874.
Geological Setting of Type Material:
Sandstone

Other Language Names for FervaniteHide

German:Fervanit
Simplified Chinese:水钒铁矿
Spanish:Fervanita

Common AssociatesHide

CarnotiteK2(UO2)2(VO4)2 · 3H2O
DuttoniteV4+O(OH)2
GypsumCaSO4 · 2H2O
HewettiteCaV6O16 · 9H2O
MetahewettiteCaV6O16 · 3H2O
MetaschoderiteAl2(PO4)(VO4) · 6H2O
SchoderiteAl2(PO4)(VO4) · 8H2O
SteigeriteAl(VO4) · 3H2O
Straczekite(Ca,K,Ba)(V5+,V4+)8O20 · 3H2O
TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
Associated Minerals Based on Photo Data:
5 photos of Fervanite associated with SchubneliteFe3+VO4 · H2O
1 photo of Fervanite associated with Bokite(Al,Fe3+)1.3(V5+,V4+,Fe3+)8O20 · 7.4H2O
1 photo of Fervanite associated with Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
1 photo of Fervanite associated with RauviteCa(UO2)2(V10O28) · 16H2O

Related Minerals - Nickel-Strunz GroupingHide

4.HG.CalciodelrioiteCa(VO3)2·4H2O Mon. 2/m : B2/b
4.HG.10HuemuliteNa4Mg(V10O28) · 24H2OTric.
4.HG.15VanaliteNaAl8V10O38 · 30H2OMon.
4.HG.20SimplotiteCaV4+4O9 · 5H2OMon.
4.HG.25VanoxiteV4+4V5+2O13 · 8H2O
4.HG.30NavajoiteFe3+V5+9O24 · 12H2OMon. 2/m : B2/m
4.HG.35DelrioiteCaSr(V2O6)(OH)2 · 3H2OMon.
4.HG.40MetadelrioiteCaSr(V2O6)(OH)2Tric.
4.HG.45Barnesite(Na,Ca)V6O16 · 3H2OMon. 2/m : P2/m
4.HG.50Hendersonite(Ca,Sr)1.3V6O16 · 6H2OOrth.
4.HG.55Grantsite(Na,Ca)2+x(V5+,V4+)6O16 · 4H2OMon. 2/m : P21/m
4.HG.60LenobliteV4+2O4 · 2H2OOrth. 2 2 2 : P21 21 21
4.HG.65SatpaeviteAl12V4+2V5+6O37 · 30H2O

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

21.4.1UvaniteU6+2V5+6O21 · 15H2O (?)Orth.
21.4.2Vanuranylite(H3O)2(UO2)2(VO4)2 · 4H2O
21.4.3StrelkiniteNa2(UO2)2(VO4)2 · 6H2OOrth.
21.4.4CarnotiteK2(UO2)2(VO4)2 · 3H2OMon. 2/m : P21/b
21.4.5Margaritasite(Cs,K,H3O)2(UO2)2(VO4)2 · H2OMon. 2/m : P21/b
21.4.6SengieriteCu2(UO2)2(VO4)2 · 6H2OMon. 2/m : P21/b
21.4.7MetatyuyamuniteCa(UO2)2(VO4)2 · 3-5H2OOrth. mmm (2/m 2/m 2/m)
21.4.8TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2OOrth. mmm (2/m 2/m 2/m) : Pnna
21.4.9RauviteCa(UO2)2(V10O28) · 16H2O
21.4.10FrancevilliteBa(UO2)2(VO4)2 · 5H2OOrth.
21.4.11MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2OTric.
21.4.12VanuraliteAl(UO2)2(V2O8)(OH) · 11H2OMon.
21.4.13CurienitePb(UO2)2(VO4)2 · 5H2OOrth.
21.4.14FritzscheiteMn(UO2)2(PO4,VO4)2 · 10H2O (?)Tet.
21.4.15Palenzonaite(NaCa2)Mn2+2(VO4)3Iso. m3m (4/m 3 2/m) : Ia3d
21.4.16Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn4+8(VO4)16(OH,O)20 · 8H2OOrth. mmm (2/m 2/m 2/m)
21.4.17PyrobelonitePbMn2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
21.4.18BrackebuschitePb2Mn3+(VO4)2(OH)Mon. 2/m : P21/m
21.4.19ČechitePbFe2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m)
21.4.20HeyitePb5Fe2+2(VO4)2O4Mon.
21.4.21MounanaitePbFe3+2(VO4)2(OH,F)2Mon. 2/m : B2/m
21.4.22SchubneliteFe3+VO4 · H2OTric.
21.4.24KazakhstaniteFe3+5V4+3V5+12O39(OH)9 · 9H2OMon.
21.4.25Bokite(Al,Fe3+)1.3(V5+,V4+,Fe3+)8O20 · 7.4H2OMon.
21.4.26Rusakovite(Fe3+,Al)5(VO4,PO4)2(OH)9 · 3H2O
21.4.27KolovratiteNixZny(VO4)0.67(x+y) · nH2O

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 FervaniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hess, F.L. and E.P. Henderson (1931) Fervanite, a hydrous ferric vanadate.
American Mineralogist: 16: 273–277.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 1049-1050.
Weeks, A.D., and M.E. Thompson (1954) Identification and occurrence of uranium and vanadium minerals from the Colorado Plateaus. U.S. Geological Survey Bull. 1009-B: 48–49.
Ross, M. (1959) Mineralogical applications of electron diffraction. II. Studies of some vanadium minerals of the Colorado Plateau. American Mineralogist: 44: 322–341.
Cesbron, F. (1970) La schubn´elite, nouveau vanadate de fer hydrat´e. Bulletin de la Société française de Minéralogie, 93, 470–475 (in French with English abstract).
Evans, H.T., Jr. and L.W. Finger (1990) Crystal chemistry of the natural vanadium bronzes. American Mineralogist: 75: 508–521.

Internet Links for FervaniteHide

Localities for FervaniteHide

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.
Gabon
 
  • Haut-Ogooué Province
    • Franceville
F. Cesbron (1970) La schubnélite, nouveau vanadate de fer hydraté. Bulletin de la Société Française de Minéralogie et de Cristallographie 93, 470-475
USA
 
  • Arizona
    • Apache County
      • Cane Valley Mining District
        • Yazzie Mesa
          • Monument No. 2 channel
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 222; Haynes, P. (1991), Arizona news, Min.News: Jan: 9.
  • Arkansas
    • Garland Co.
      • Wilson Springs (Potash Sulfur Springs)
        • Union Carbide Mine
R&M 70:3 pp 154-170; American Mineralogist (1979), 64:713-720; Mineralogical Magazine 1984 48 : 289-293
  • Colorado
    • Montrose Co.
      • Uravan Mining District
Minerals of Colorado (1997) Eckel, E. B.
        • Paradox Valley
Minerals of Colorado (1997) Eckel, E. B.
Specimen ex. Pequa Rare Minerals - Lemanski collection
    • San Miguel Co.
American Mineralogist (1931): 16: 273-277; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1049.
American Mineralogist (1935): 20: 769-772.
      • Uravan Mining District
Minerals of Colorado (1997) Eckel, E. B.
  • Nevada
    • Eureka Co.
      • Carlin Trend
        • Maggie Creek Mining Subdistrict
MinRec 26(5):449-469.
      • Lynn Mining District
        • Elko
Mineralogical Record 26:467
  • Utah
    • Grand Co.
UGMS Bull 117 Minerals and Mineral Localities of Utah
American Mineralogist (1931): 16: 273-277; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1049; American Mineralogist (1959): 44: 322-341.
 
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