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Hummerite

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

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Formula:
K
 
2
Mg
 
2
(V
 
10
O
 
28
) · 16H
 
2
O
System:Triclinic
Member of:Pascoite Group
This page provides mineralogical data about Hummerite.

Classification of Hummerite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/G.01-20
Nickel-Strunz 10th (pending) edition ID:4.HC.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
C : [6]-Sorovanadates
Dana 8th edition ID:47.2.2.1

47 : VANADIUM OXYSALTS
2 : Anhydrous Vanadium Oxysalts Containing Hydroxyl or Halogen
Hey's CIM Ref.:21.2.12

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

Type Locality:Hummer Mine, Jo Dandy Mine (Paradox D; Hummer; C; Blackburn; Yellow Bird No. 1; Oversight; Broker), Paradox Valley, Uravan District, Montrose Co., Colorado, USA
Year of Discovery:1950

Crystallography of Hummerite

Crystal System:Triclinic
Cell Parameters:a = 10.81Å, b = 11.01Å, c = 8.85Å
α = 106.07°, β = 107.82°, γ = 65.67°
Ratio:a:b:c = 0.982 : 1 : 0.804
Unit Cell Volume:V 899.82 ų (Calculated from Unit Cell)

Optical Data of Hummerite

Type:Biaxial (-)
Dispersion:r > v

Chemical Properties of Hummerite

Formula:
K
 
2
Mg
 
2
(V
 
10
O
 
28
) · 16H
 
2
O
Essential elements:H, K, Mg, O, V
All elements listed in formula:H, K, Mg, O, V

Relationship of Hummerite to other Species

Member of:Pascoite Group
Other Members of Group:

- +
Lasalite
Na
 
2
Mg
 
2
(V
 
10
O
 
28
) · 20H
 
2
O
Magnesiopascoite
Ca
 
2
Mg(V
 
10
O
 
28
) · 16H
 
2
O
Pascoite
Ca
 
3
(V
 
10
O
 
28
) · 17H
 
2
O
Rakovanite
Na
 
3
(H
 
3
V
 
10
O
 
28
) · 15H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
4.HC.05Pascoite
Ca
 
3
(V
 
10
O
 
28
) · 17H
 
2
O
4.HC.05Lasalite
Na
 
2
Mg
 
2
(V
 
10
O
 
28
) · 20H
 
2
O
4.HC.05Magnesiopascoite
Ca
 
2
Mg(V
 
10
O
 
28
) · 16H
 
2
O
4.HC.15Sherwoodite
Ca
 
4.5
(AlV
4+
2
V
5+
12
O
 
40
) · 28H
 
2
O
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
21.2.3Metahewettite
CaV
 
6
O
 
16
 · 3H
 
2
O
21.2.4Hewettite
CaV
 
6
O
 
16
 · 9H
 
2
O
21.2.5Pintadoite
Ca
 
2
(V
 
2
O
 
7
) · 9H
 
2
O
21.2.6Hendersonite
(Ca,Sr)
 
1.3
V
 
6
O
 
16
 · 6H
 
2
O
21.2.7Fernandinite
(Ca,K)(V
5+
 
,V
4+
 
,Fe
2+
 
)
 
8
O
 
20
 · 10H
 
2
O
21.2.8Pascoite
Ca
 
3
(V
 
10
O
 
28
) · 17H
 
2
O
21.2.9Sherwoodite
Ca
 
4.5
(AlV
4+
2
V
5+
12
O
 
40
) · 28H
 
2
O
21.2.10Melanovanadite
Ca
 
2
(V
5+
 
,V
4+
 
)
 
4
O
 
10
 · 5H
 
2
O
21.2.11Grantsite
(Na,Ca)V
 
6
O
 
16
 · 4H
 
2
O
21.2.13Metadelrioite
CaSr(V
 
2
O
 
6
)(OH)
 
2
21.2.14Delrioite
CaSr(V
 
2
O
 
6
)(OH)
 
2
 · 3H
 
2
O
21.2.15Straczekite
(Ca,K,Ba)(V
5+
 
,V
4+
 
)
 
8
O
 
20
 · 3H
 
2
O
21.2.16Gamagarite
Ba
 
2
(Fe
3+
 
,Mn
3+
 
)(VO
 
4
)
 
2
(OH)

Other Names for Hummerite

Other Languages:
German:Hummerit
Russian:Хаммерит
Spanish:Hummerita

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 Hummerite

Reference List:

- +
American Mineralogist: 36: 326-327.

Internet Links for Hummerite

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

    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.
    Argentina
     
    • Mendoza
      • Malargüe Department
        • Pampa Amarilla District
    		C.E. Gordillo, E. Linares, R.O. Toubes, H. Winchell: Amer. Mineral. 51:1-13 (1966); American Mineralogist: 51: 1-13
    Germany
     
    • Thuringia
      • Gera
        • Ronneburg U deposit
    		T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
    Kyrgyzstan
     
    • Osh Oblast
      • Alai (Alay) Range
        • Fergana Valley
          • Fergana
    		Karpenko, V.Yu. et al. Zapiski RMO 138(1)83(2009)
    USA
     
    • Arizona
      • Apache Co.
        • Lukachukai Mts
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 253; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 79.
    • Colorado
      • Montrose Co.
        • Uravan District
          • Bull Canyon
    		Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) Eckels, E. B.
          • Paradox Valley
            • Jo Dandy Mine (Paradox D; Hummer; C; Blackburn; Yellow Bird No. 1; Oversight; Broker)
    		Amer.Min.(1951) 36, 326-327, "Minerals of Colorado, updated & revised", p. 271 & photo 133, by Eckel, Edwin B., 1997
    Minerals of Colorado (1997) Eckels, E. B.
    Minerals of Colorado (1997) Eckels, E. B.
      • Pueblo Co.
        • Turkey Creek 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.
    • South Dakota
      • Fall River Co.
    		R&M 75:3 pp 156-169; USGS Bull 1063D
          • Craven Canyon
    		SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    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
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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