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Metahewettite

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Jo Dandy Mine (Paradox D; Hummer; C; Blackburn; Yellow Bird No. 1; Oversight; Broker), Paradox Valley, Uravan District, Montrose Co., Colorado, USA
© Brent Thorne

Show Metahewettite Photos (9)
Formula:
Ca[V
 
2
O
 
6
|V
 
4
O
 
10
] · 3H
 
2
O
System:MonoclinicColour:Deep red; red to orange ...
Name:In allusion to its lesser water content and relationship to Hewettite.


A tertiary mineral resulting from the dehydration of Hewettite as impregnations in sandstone.

Classification of Metahewettite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/G.12-50
Nickel-Strunz 10th (pending) edition ID:4.HE.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
E : Phyllovanadates
Dana 8th edition ID:47.3.1.2

47 : VANADIUM OXYSALTS
3 : Hydrated Normal Vanadium Oxysalts
Hey's CIM Ref.:21.2.3

21 : Vanadates (and vanadates with arsenate or phosphate)
2 : Vanadates of Mg, Ca, Sr or Ba
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Type Occurrence of Metahewettite

Type Locality:Thompsons District (S. E. Thomsons), Grand Co., Utah, USA
General Appearance of Type Material:Impregnations
Place of Conservation of Type Material:Harvard University, Cambridge, Massachusetts, USA: #93306. U.S. National Museum of Natural History, Washington, D.C., USA: #93305 through 93308.
Year of Discovery:1914
Geological Setting of type material:Colorado Plateau-type U-V deposit.

Occurrences of Metahewettite

Geological Setting:Colorado Plateau-type U-V deposits.

Physical Properties of Metahewettite

Lustre:Silky, Dull
Diaphaneity (Transparency):Translucent
Colour:Deep red; red to orange in transmittedlight
Streak:Maroon to brownish red
Comment:Soft
Density (measured):2.51 - 2.94 g/cm3
Density (calculated):3.05 g/cm3
Comment:Measured values are for material with 9H2O and 3H2O, respectively

Crystallography of Metahewettite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Cell Parameters:a = 12.15Å, b = 3.607Å, c = 18.44Å
β = 118.03°
Ratio:a:b:c = 3.368 : 1 : 5.112
Unit Cell Volume:V 713.34 ų (Calculated from Unit Cell)
Z:2
Morphology:Crystals microscopic laths or tablets, flattened on {001} and bounded laterally by {010} and {110}, with a prism angle of 57°; in parallel or radial-fibrous masses; pulverulent; coatings.
Comment:Space Group = A2/m

Optical Data of Metahewettite

Type:Biaxial (-)
RI values: nα = 1.700 nβ = 2.100 nγ = 2.230
2V:Calculated: 52°
Maximum Birefringence:δ = 0.530

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:relatively strong
Pleochroism:Visible
Comments:X = c = Light yellow-orange
Y = b = Deep red
Z = a = Deeper red
Comments:2V measured: not determined.

Chemical Properties of Metahewettite

Formula:
Ca[V
 
2
O
 
6
|V
 
4
O
 
10
] · 3H
 
2
O
Essential elements:Ca, H, O, V
All elements listed in formula:Ca, H, O, V

Relationship of Metahewettite to other Species

Common Associates:
SeleniumHewettiteGypsum
Related Minerals - Nickel-Strunz Grouping):

- +
4.HE.05Melanovanadite
Ca
 
2
V
 
4
V
 
6
O
 
25
·nH
 
2
O
4.HE.10Shcherbinaite
V
 
2
O
 
5
4.HE.15Hewettite
Ca[V
 
2
O
 
6
|V
 
4
O
 
10
] · 9H
 
2
O
4.HE.20Bariandite
Al
 
3
[(V
5+
 
,V
4+
 
)
 
4
O
 
10
]
 
10
 · 45H
 
2
O
4.HE.20Bokite
(Al,Fe
3+
 
)
 
1.3
[(V
5+
 
,V
4+
 
,Fe
3+
 
)
 
4
O
 
10
]
 
2
 · 7.5H
 
2
O
4.HE.20Corvusite
V
 
7
O
 
20
·nH
 
2
O
4.HE.20Fernandinite
(Ca,K)[(V
5+
 
,V
4+
 
,Fe
2+
 
)
 
4
O
 
10
]
 
2
 · 4H
 
2
O
4.HE.20Straczekite
(Ca,K,Ba)V
 
8
O
 
20
·3H
 
2
O
4.HE.25Häggite
V
 
2
O
 
2
(OH)
 
3
4.HE.30Doloresite
3V
 
2
O
 
4
·4H
 
2
O
4.HE.35Duttonite
VO(OH)
 
2
4.HE.40Cavoite
CaV
 
3
O
 
7
Related Minerals - Hey's Index Grouping:

- +
21.2.1Metarossite
Ca[V
 
2
O
 
6
] · 2H
 
2
O
21.2.2Rossite
Ca[V
 
2
O
 
6
] · 4H
 
2
O
21.2.4Hewettite
Ca[V
 
2
O
 
6
|V
 
4
O
 
10
] · 9H
 
2
O
21.2.5Pintadoite
Ca
 
2
V
 
2
O
 
7
·9H
 
2
O
21.2.6Hendersonite
(Ca,Sr)
 
x
(V
5+
 
,V
4+
 
)
 
12
O
 
32
·12H
 
2
O (x about 2.6)
21.2.7Fernandinite
(Ca,K)[(V
5+
 
,V
4+
 
,Fe
2+
 
)
 
4
O
 
10
]
 
2
 · 4H
 
2
O
21.2.8Pascoite
Ca
 
3
[V
 
10
O
 
28
] · 17H
 
2
O
21.2.9Sherwoodite
Ca
 
9
Al
 
2
V
 
4
V
 
24
O
 
80
·56H
 
2
O
21.2.10Melanovanadite
Ca
 
2
V
 
4
V
 
6
O
 
25
·nH
 
2
O
21.2.11Grantsite
(Na
 
2
,Ca)[V
 
2
O
 
6
|(V
5+
 
,V
4+
 
)
 
4
O
 
10
] · 4H
 
2
O
21.2.12Hummerite
K
 
2
Mg
 
2
[V
 
10
O
 
28
] · 16H
 
2
O
21.2.13Metadelrioite
CaSr[(OH)
 
2
|V
 
2
O
 
6
]
21.2.14Delrioite
CaSr[(OH)
 
2
|V
 
2
O
 
6
] · 3H
 
2
O
21.2.15Straczekite
(Ca,K,Ba)V
 
8
O
 
20
·3H
 
2
O
21.2.16Gamagarite
Ba
 
2
(Fe
3+
 
,Mn
3+
 
)[OH|(VO
 
4
)
 
2
]

Other Names for Metahewettite

Other Languages:
German:Metahewettit
Russian:Метахьюэттит
Spanish:Metahewettita

Other Information

Other Information:Reversibly hydrates to Hewettite. Slightly soluble in water.
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 Metahewettite

Reference List:Hillebrand, Merwin, and Wright (1914) Proceedings of the American Philosophical Society: 53: 31.

Hillebrand, Merwin, and Wright (1914) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 54: 209.

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.: 1061-1062.

Bayliss, P. (1979) X-ray powder data for metahewettite. Mineralogical Magazine, 43, 550.

Bayliss, P. (1982) X-ray powder data for hewettite. Mineralogical Magazine, 46,
503–504.

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

Articles/Blogs about Metahewettite

Internet Links for Metahewettite

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  • Metahewettite details from Handbook of Mineralogy (PDF)
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    Localities for Metahewettite

    Hide Locality List
    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.
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    (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.
    Kazakhstan
     
    • Ongtüstik Qazaqstan Oblysy (Southern-Kazakhstan Oblast')
      • Karatau Range
    		Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 43
        • Kurumsak River Valley
    USA
     
    • Arizona
      • Apache Co.
    		Chenoweth, W.L. (1973), Uranium deposits of northwestern Arizona, New Mexico Geol. Soc. 24th. guidebook: 1147-148; Peirce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of northwestern Arizona, New Mexico Geol. Soc. 24th. guidebook: 147-148; Peirce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182.
    Chenoweth, W.L. (1973), Uranium deposits of northwestern Arizona, New Mexico Geol. Soc. 24th. guidebook: 147-148; Peirce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of northwestern Arizona, New Mexico Geol. Soc. 24th. field guidebook: 147-148; Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of northwestern Arizona, New Mexico Geol. Soc. 24th. field guidebook: 147-148; Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182.
    Chenoweth, W.L. (1973), Uranium deposits of northwestern Arizona, New Mexico Geol. Soc. 24th. field guidebook: 147-148; Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
        • Navajo Indian Reservation
          • Monument Valley
            • Monument No. 2 channel
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 294; Finnell, T.L. (1957), Structural control of uranium ore at the Monument No. 2 mine, Apache Co., AZ, Econ.Geol.: 52: 25-35; Rocks & Min.: 64:500.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of northwestern Arizona, New Mexico Geol. Soc. 24th. field guidebook: 147-148; Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
    Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 147-148; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 252-254.
      • Coconino Co.
        • Vermillion Cliffs District
    		Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 218; Barrett, D.C. & C. Collins (1953), Preliminary Reconnaissance Report, US Atomic Energy Comm. USAEL, RME 155.
      • Yavapai Co.
        • Bradshaw Mts (Bradshaw Range)
          • Big Bug District
            • Poland
    		MRDS database Dep. ID #10026929, MRDS ID #M001123.
    • Arkansas
      • Garland Co.
        • Wilson Springs (Potash Sulfur Springs)
    		Rocks & Min.: 63:108.
    • Colorado
      • Mesa Co.
        • Uravan District
          • Calamity Mesa
    		Minerals of Colorado (1997) Eckels, E. B.
      • Montrose Co.
        • Uravan District
          • Paradox Valley
    		Dana 7:I:602.
    Min Rec (1993) 24:311-314
      • San Miguel Co.
        • Slick Rock District
          • Bull Pen Canyon
    		Rocks & Minerals 80:5 pp358-359
    • Nevada
      • Eureka Co.
        • Gibellini District
    		NBMG Bull 64 Geology and Mineral Resources of Eureka County, Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    • New Mexico
      • Cibola Co.
        • Grants District
    		NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
      • McKinley Co.
    		Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    New Mexico Bureau of Mines and Mineral Resources, Mineral Museum no. 15244
    • South Dakota
      • Fall River Co.
    		SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
          • Craven Canyon
    		SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    • Utah
      • Emery Co.
        • San Rafael District (San Rafael Swell)
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
          • Temple Mountain
    		UGMS Bull 117 Minerals and Mineral Localities of Utah; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    UGMS Bull 117 Minerals and Mineral Localities of Utah
      • Garfield Co.
        • Henry Mts
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
      • Grand Co.
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
        • Polar Mesa District (Polar Mesa)
    		Am Min 16:273-277
    UGMS Bull 117 Minerals and Mineral Localities of Utah
        • Yellow Cat District (W. part of Thompsons District)
          • Cisco
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
      • San Juan Co.
        • Paradox Valley
          • Paradox Valley District
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    Mineral and/or Locality
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