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Navajoite

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Formula:
Fe3+V95+O24 · 12H2O
System:
Monoclinic
Colour:
Dark brown
Hardness:
Name:
After the Navajo Indian Nation, upon whose reservation the type material occurred.
This page provides mineralogical data about Navajoite.

Classification of Navajoite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
4.HG.30

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
G : Unclassified V oxides
4.6.2.1

4 : SIMPLE OXIDES
6 : Miscellaneous
7.12.8

7 : Oxides and Hydroxides
12 : Oxides of V, Nb and Ta
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Type Occurrence of Navajoite

Place of Conservation of Type Material:
Harvard, Smithsonian
Year of Discovery:
1954
Geological Setting of Type Material:
Colorado Plateau U-V deposit

Physical Properties of Navajoite

Adamantine, Silky
Diaphaneity (Transparency):
Translucent
Colour:
Dark brown
Streak:
Light brown
Hardness (Mohs):
Tenacity:
Sectile
Density:
2.56 g/cm3 (Measured)    2.53 g/cm3 (Calculated)

Crystallography of Navajoite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 34.94(2) Å, b = 3.597(2) Å, c = 11.79(1) Å
β = 95.98(6)°
Ratio:
a:b:c = 9.714 : 1 : 3.278
Unit Cell Volume:
V 1,473.69 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Fibrous cross vein fillings
X-Ray Powder Diffraction Data:
d-spacingIntensity
17.38 (7)
11.79 (100)
10.54 (3)
5.79 (6)
3.41 (20)
3.18 (8)
1.992 (4)
Comments:
Affected by preferred orientation.

Optical Data of Navajoite

Type:
Biaxial (-)
RI values:
nα = 1.905 nβ = 2.020 nγ = 2.020
Max Birefringence:
δ = 0.115
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
dispersion not observed
Comments:
X=Y= yellowish brown
Z= dark brorn

Chemical Properties of Navajoite

Formula:
Fe3+V95+O24 · 12H2O
Essential elements:
All elements listed in formula:

Relationship of Navajoite to other Species

4.HG.05FervaniteFe43+V45+O16 · 5H2O
4.HG.10HuemuliteNa4Mg(V10O28) · 24H2O
4.HG.15VanaliteNaAl8V10O38 · 30H2O
4.HG.20SimplotiteCaV44+O9 · 5H2O
4.HG.25VanoxiteV44+V25+O13 · 8H2O
4.HG.35DelrioiteCaSr(V2O6)(OH)2 · 3H2O
4.HG.40MetadelrioiteCaSr(V2O6)(OH)2
4.HG.45Barnesite(Na,Ca)V6O16 · 3H2O
4.HG.50Hendersonite(Ca,Sr)1.3V6O16 · 6H2O
4.HG.55Grantsite(Na,Ca)2+x(V5+,V4+)6O16 · 4H2O
4.HG.60LenobliteV24+O4 · 2H2O
4.HG.65SatpaeviteAl12V24+V65+O37 · 30H2O
7.12.1Montroseite(V3+,Fe3+)O(OH)
7.12.2 Scherbinaite
7.12.3ParamontroseiteV4+O2
7.12.4HäggiteV3+V4+O2(OH)3
7.12.5DuttoniteV4+O(OH)2
7.12.6DoloresiteV34+O4(OH)4
7.12.7LenobliteV24+O4 · 2H2O
7.12.9VanoxiteV44+V25+O13 · 8H2O
7.12.10BarianditeAl0.6(V5+,V4+)8O20 · 9H2O
7.12.11Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
7.12.12SimplotiteCaV44+O9 · 5H2O
7.12.13KyzylkumiteTi2V3+O5(OH)
7.12.14SchreyeriteV23+Ti3O9
7.12.15BerdesinskiiteV23+TiO5
7.12.16TivaniteV3+TiO3(OH)
7.12.17MannarditeBa(Ti64+V23+)O16
7.12.18KarelianiteV23+O3
7.12.19CoulsoniteFe2+V23+O4
7.12.20Nolanite(V3+,Fe3+,Fe2+,Ti)10O14(OH)2
7.12.21Vuorelainenite(Mn,Fe)(V,Cr)2O4
7.12.22TantiteTa2O5
7.12.23Kimrobinsonite(Ta,Nb)(OH)5-2x(O,CO3)x ; x near 1.2

Other Names for Navajoite

Name in Other Languages:
German:Navajoit
Spanish:Navajoita

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 Navajoite

Reference List:
Weeks, A.D., M.E. Thompson, and A.M. Sherwood (1955) Navajoite, a new vanadium oxide from Arizona. American Mineralogist, 40, 207–212.

Evans, Jr., H.T., and Hughes, J.M. (1990): Crystal chemistry of the natural vanadium bronzes. American Mineralogist 75, 508-521.

Internet Links for Navajoite

Localities for Navajoite

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.
China
 
  • Guizhou Province
    • Qiandongnan Autonomous Prefecture
      • Zhenyuan Co.
Zongwen Yang (2008): Guizhou Geology 25(1), 31-34
USA (TL)
 
  • Arizona
    • Apache Co.
      • Navajo Indian Reservation
        • Monument Valley
          • Monument No. 2 channel
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 311; Witkind, I.J. & R.E. Thaden (1963), Geology and uranium-vanadium deposits of the Monument Valley area, Apache and Navajo Cos., AZ: 115, 117; Finnell, T.L. (1957), Structural control of uranium ore at the Monument No. 2 mine, Apache Co., AZ, Econ.Geol.: 52: 25-35; Young, R.G. (1964), Distribution of uranium deposits in the White Canyon-Monument Valley district, UT-AZ, Econ.Geol.: 59: 850-973; Weeks, A.D., et al (1955), Navajoite, a new vanadium oxide from AZ, Am.Min.: 40: 207-212; Weeks, A.D., et al (1954), Navajoite, a new vanadium oxide from AZ, Science: 119: 326; Ross, M. (1959), Mineralogical applications of electron diffraction.II. Studies of some vanadium minerals of the Colorado Plateau, Am.Min.: 44: 322-341; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 34.
  • Arkansas
    • Garland Co.
      • Wilson Springs (Potash Sulfur Springs)
        • Union Carbide Mine
R&M 70:3 pp 154-170
  • Colorado
    • Mesa Co.
      • Uravan District
        • Calamity Mesa
Minerals of Colorado (1997) E.B. Eckels
Minerals of Colorado (1997) E.B. Eckels
    • Montrose Co.
      • Uravan District
          • Jo Dandy Mine (Paradox D; Hummer; C; Blackburn; Yellow Bird No. 1; Oversight; Broker)
Minerals of Colorado (1997) E.B. Eckels
    • San Miguel Co.
      • Slick Rock District
Minerals of Colorado (1997) E.B. Eckels
  • Utah
    • San Juan Co.
      • La Sal District (Paradox Valley District)
        • Lyon Canyon Creek
EDX results from Kaygeedee Minerals
      • Monument Valley
        • Monument Valley District (Monumental District)
          • Goulding
            • Oljeto Mesa
UGMS Bull 117 Minerals and Mineral Localities of Utah
      • Paradox Valley
        • Paradox Valley District
Mineral and/or Locality  
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