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Fervanite

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Gold Quarry Mine (Maggie claims), Maggie Creek District, Eureka Co., Nevada, USA
© 2007, JGW

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Formula:
Fe
3+
4
V
5+
4
O
 
16
 · 5H
 
2
O
System:MonoclinicColour:Golden brown, ...
Name:In allusion to its composition, containing both iron (Latin = FERrum) and VANadium.
This page provides mineralogical data about Fervanite.

Classification of Fervanite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/C.07-20
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:47.3.4.1

47 : VANADIUM OXYSALTS
3 : Hydrated Normal Vanadium Oxysalts
Hey's CIM Ref.:21.4.23

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

Co-type Localities:Gypsum Valley District, San Miguel Co., Colorado, USA
Polar Mesa, Polar Mesa District (Polar Mesa), Grand Co., Utah, USA
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.
Year of Discovery:1931
Geological Setting of type material:Sandstone

Physical Properties of Fervanite

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

Crystallography of Fervanite

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

Optical Data of Fervanite

Type:Biaxial (-)
RI values: nα = 2.186 nβ = 2.222 nγ = 2.224
2V:Calculated: 26°
Maximum Birefringence:δ = 0.038

Chart 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 Fervanite

Formula:
Fe
3+
4
V
5+
4
O
 
16
 · 5H
 
2
O
Essential elements:Fe, H, O, V
All elements listed in formula:Fe, H, O, V

Relationship of Fervanite to other Species

Common Associates:
TyuyamuniteStraczekiteSteigeriteSchoderiteMetaschoderite
MetahewettiteHewettiteGypsumDuttoniteCarnotite
Related Minerals - Nickel-Strunz Grouping):

- +
4.HG.10Huemulite
Na
 
4
Mg(V
 
10
O
 
28
) · 24H
 
2
O
4.HG.15Vanalite
NaAl
 
8
V
 
10
O
 
38
 · 30H
 
2
O
4.HG.20Simplotite
CaV
4+
4
O
 
9
 · 5H
 
2
O
4.HG.25Vanoxite
V
4+
4
V
5+
2
O
 
13
 · 8H
 
2
O
4.HG.30Navajoite
Fe
3+
 
V
5+
9
O
 
24
 · 12H
 
2
O
4.HG.35Delrioite
CaSr(V
 
2
O
 
6
)(OH)
 
2
 · 3H
 
2
O
4.HG.40Metadelrioite
CaSr(V
 
2
O
 
6
)(OH)
 
2
4.HG.45Barnesite
(Na,Ca)V
 
6
O
 
16
 · 3H
 
2
O
4.HG.50Hendersonite
(Ca,Sr)
 
1.3
V
 
6
O
 
16
 · 6H
 
2
O
4.HG.55Grantsite
(Na,Ca)V
 
6
O
 
16
 · 4H
 
2
O
4.HG.60Lenoblite
V
4+
2
O
 
4
 · 2H
 
2
O
4.HG.65Satpaevite
Al
 
12
V
4+
2
V
5+
6
O
 
37
 · 30H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
21.4.1Uvanite
U
6+
2
V
5+
6
O
 
21
 · 15H
 
2
O (?)
21.4.2Vanuranylite
(H
 
3
O)
 
2
(UO
 
2
)
 
2
(VO
 
4
)
 
2
 · 4H
 
2
O
21.4.3Strelkinite
Na
 
2
(UO
 
2
)
 
2
(VO
 
4
)
 
2
 · 6H
 
2
O
21.4.4Carnotite
K
 
2
(UO
 
2
)
 
2
(VO
 
4
)
 
2
 · 3H
 
2
O
21.4.5Margaritasite
(Cs,K,H
 
3
O)
 
2
(UO
 
2
)
 
2
(VO
 
4
)
 
2
 · H
 
2
O
21.4.6Sengierite
Cu
 
2
(UO
 
2
)
 
2
(VO
 
4
)
 
2
 · 6H
 
2
O
21.4.7Metatyuyamunite
Ca(UO
 
2
)
 
2
(VO
 
4
)
 
2
 · 3-5H
 
2
O
21.4.8Tyuyamunite
Ca(UO
 
2
)
 
2
(VO
 
4
)
 
2
 · 5-8H
 
2
O
21.4.9Rauvite
Ca(UO
 
2
)
 
2
(V
 
10
O
 
28
) · 16H
 
2
O
21.4.10Francevillite
(Ba,Pb)(UO
 
2
)
 
2
(VO
 
4
)
 
2
 · 5H
 
2
O
21.4.11Metavanuralite
Al(UO
 
2
)
 
2
(VO
 
4
)
 
2
(OH) · 8H
 
2
O
21.4.12Vanuralite
Al(UO
 
2
)
 
2
(VO
 
4
)
 
2
(OH) · 11H
 
2
O
21.4.13Curienite
Pb(UO
 
2
)
 
2
(VO
 
4
)
 
2
 · 5H
 
2
O
21.4.14Fritzscheite
Mn(UO
 
2
)
 
2
(PO
 
4
,VO
 
4
)
 
2
 · 10H
 
2
O (?)
21.4.15Palenzonaite
(Ca,Na)
 
3
CaMn
2+
2
(VO
 
4
)
 
3
21.4.16Santafeite
(Na,Ca,Sr)
 
12
(Mn
2+
 
,Fe
3+
 
,Al,Mg)
 
8
Mn
4+
8
(VO
 
4
)
 
16
(OH,O)
 
20
 · 8H
 
2
O
21.4.17Pyrobelonite
PbMn
2+
 
(VO
 
4
)(OH)
21.4.18Brackebuschite
Pb
 
2
(Mn
3+
 
,Fe
3+
 
)(VO
 
4
)
 
2
(OH)
21.4.19Čechite
Pb(Fe
2+
 
,Mn
2+
 
)(VO
 
4
)(OH)
21.4.20Heyite
Pb
 
5
Fe
2+
2
(VO
 
4
)
 
2
O
 
4
21.4.21Mounanaite
PbFe
3+
2
(VO
 
4
)
 
2
 · 2(OH,F)
21.4.22Schubnelite
Fe
3+
 
VO
 
4
 · H
 
2
O
21.4.24Kazakhstanite
Fe
3+
5
V
4+
3
V
5+
12
O
 
39
(OH)
 
9
 · 9H
 
2
O
21.4.25Bokite
(Al,Fe
3+
 
)
 
1.3
(V
5+
 
,V
4+
 
,Fe
3+
 
)
 
8
O
 
20
 · 7.4H
 
2
O
21.4.26Rusakovite
(Fe
3+
 
,Al)
 
5
(VO
 
4
,PO
 
4
)
 
2
(OH)
 
9
 · 3H
 
2
O
21.4.27Kolovratite
Ni
 
x
Zn
 
y
(VO
 
4
)
 
0.67(x+y)
 · nH
 
2
O

Other Names for Fervanite

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

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Fervanite

Reference List:

- +
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 Fervanite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Fervanite details from Handbook of Mineralogy (PDF)
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    • Localities for Fervanite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? 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.
    USA
     
    • Arizona
      • Apache Co.
        • Navajo Indian Reservation
          • Monument Valley
            • 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 District
    		Minerals of Colorado (1997) Eckels, E. B.
          • Paradox Valley
    		Specimen ex. Pequa Rare Minerals - Lemanski collection
    Minerals of Colorado (1997) Eckel, E. B.
      • 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 District
    		Minerals of Colorado (1997) Eckels, E. B.
    • Nevada
      • Eureka Co.
        • Lynn District
          • Elko
    		MinRecord 26:467
        • Maggie Creek District
    		MinRec 26(5):449-469.
    • 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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