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Swartzite

Big Photo

Hillside Mine area, Bozarth Mesa, Bagdad, Eureka District, Yavapai Co., Arizona, USA
© 2008, J. Weissman

Formula:
MgCa(UO
 
2
)[CO
 
3
]
 
3
 · 12H
 
2
O
System:MonoclinicColour:Bright green, ...
Name:Named after Charles Kephart Swartz (1861-1949), Professor of Geology, Johns Hopkins University, Baltimore, Maryland (USA).
This page provides mineralogical data about Swartzite.

Classification of Swartzite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:5/F.02-30
Nickel-Strunz 10th (pending) edition ID:5.ED.10

5 : CARBONATES (NITRATES)
E : Uranyl Carbonates
D : UO2:CO3 = 1:3
Dana 8th edition ID:15.3.3.2

15 : HYDRATED NORMAL CARBONATES
3 : AmBn(XO3)p·xH2O, with (m+n):p = 1:1
Hey's CIM Ref.:11.11.13

11 : Carbonates
11 : Carbonates of Cr and U
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Type Occurrence of Swartzite

Type Locality:Hillside Mine (Happy Jack MS 920 claim; Camp MS 919 claim; Seven Stars MS 916 claim), Bozarth Mesa, Bagdad, Eureka District, Yavapai Co., Arizona, USA
Year of Discovery:1948
Geological Setting of type material:Post-mining efflorescences on mine walls.
Associated Minerals at type locality:
SchröckingeriteGypsumBayleyiteAndersonite

Physical Properties of Swartzite

Colour:Bright green, yellowish-white (dehydrated).
Density (measured):2.3 g/cm3
Density (calculated):2.32 g/cm3

Crystallography of Swartzite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/m {P1 1 21/m} {P21/m} {P1 21/m 1}
Cell Parameters:a = 11.12Å, b = 14.72Å, c = 6.47Å
β = 99.43°
Ratio:a:b:c = 0.755 : 1 : 0.44
Unit Cell Volume:V 1,044.74 ų (Calculated from Unit Cell)
Morphology:Clusters of tiny prismatic crystals.

Optical Data of Swartzite

Type:Biaxial (-)
RI values: nα = 1.465 nβ = 1.510 nγ = 1.540
2V:Calculated: 40°
Maximum Birefringence:δ = 0.075

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:r > v strong
Pleochroism:Visible
Comments:X = Colourless
Y = Yellow
Z = Yellow

Chemical Properties of Swartzite

Formula:
MgCa(UO
 
2
)[CO
 
3
]
 
3
 · 12H
 
2
O
Essential elements:C, Ca, H, Mg, O, U
All elements listed in formula:C, Ca, H, Mg, O, U

Relationship of Swartzite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.ED.05Bayleyite
Mg
 
2
(UO
 
2
)[CO
 
3
]
 
3
 · 18H
 
2
O
5.ED.15Albrechtschraufite
Ca
 
4
Mg(UO
 
2
)
 
2
[F
 
2
|(CO
 
3
)
 
6
] · 17 H
 
2
O
5.ED.20Liebigite
Ca
 
2
(UO
 
2
)[CO
 
3
]
 
3
 · 11H
 
2
O
5.ED.25Rabbittite
Ca
 
3
Mg
 
3
(UO
 
2
)
 
2
[(OH)
 
4
|(CO
 
3
)
 
6
] · 18H
 
2
O
5.ED.30Andersonite
Na
 
2
Ca(UO
 
2
)[CO
 
3
]
 
3
 · 6H
 
2
O
5.ED.35Grimselite
K
 
3
Na(UO
 
2
)[CO
 
3
]
 
3
 · H
 
2
O
5.ED.40Widenmannite
Pb
 
2
(UO
 
2
)[CO
 
3
]
 
3
5.ED.45Znucalite
Zn
 
12
Ca(UO
 
2
)[(OH)
 
22
|(CO
 
3
)
 
3
] · 4H
 
2
O
5.ED.50Čejkaite
Na
 
4
(UO
 
2
)(CO
 
3
)
 
3
Related Minerals - Hey's Index Grouping:

- +
11.11.1Stichtite
Mg
 
6
Cr
 
2
[(OH)
 
16
|CO
 
3
] · 4H
 
2
O
11.11.2Rutherfordine
(UO
 
2
)[CO
 
3
]
11.11.3Joliotite
(UO
 
2
)[CO
 
3
] · nH
 
2
O
11.11.4Grimselite
K
 
3
Na(UO
 
2
)[CO
 
3
]
 
3
 · H
 
2
O
11.11.5Bayleyite
Mg
 
2
(UO
 
2
)[CO
 
3
]
 
3
 · 18H
 
2
O
11.11.6Metazellerite
Ca(UO
 
2
)[CO
 
3
]
 
2
 · 3H
 
2
O
11.11.7Zellerite
Ca(UO
 
2
)[CO
 
3
]
 
2
 · 5H
 
2
O
11.11.8Wyartite
Ca[U
5+
 
(UO
 
2
)
 
2
(CO
 
3
)O
 
4
(OH)](H
 
2
O)
 
7
11.11.9Urancalcarite
Ca(UO
 
2
)
 
3
[(OH)
 
6
|CO
 
3
] · 3H
 
2
O
11.11.10Sharpite
Ca(UO
 
2
)
 
6
[(OH)
 
4
|(CO
 
3
)
 
5
] · 6H
 
2
O
11.11.11Voglite
Ca
 
2
Cu(UO
 
2
)[CO
 
3
]
 
4
 · 6H
 
2
O (?)
11.11.12Andersonite
Na
 
2
Ca(UO
 
2
)[CO
 
3
]
 
3
 · 6H
 
2
O
11.11.14Rabbittite
Ca
 
3
Mg
 
3
(UO
 
2
)
 
2
[(OH)
 
4
|(CO
 
3
)
 
6
] · 18H
 
2
O
11.11.15Kamotoite-(Y)
Y
 
2
(UO
 
2
)
 
4
[O
 
4
|(CO
 
3
)
 
3
] · 14H
 
2
O
11.11.16Shabaite-(Nd)
Ca(Nd,Sm,Y)
 
2
(UO
 
2
)[(OH)
 
2
|(CO
 
3
)
 
4
] · 6H
 
2
O
11.11.17Astrocyanite-(Ce)
Cu
 
2
(Ce,Nd,La)
 
2
(UO
 
2
)[(OH)
 
2
|(CO
 
3
)
 
5
] · 1.5H
 
2
O
11.11.18Bijvoetite-(Y)
(Y,Dy)
 
2
(UO
 
2
)
 
4
[(OH)
 
6
|(CO
 
3
)
 
4
] · 11H
 
2
O
11.11.19Widenmannite
Pb
 
2
(UO
 
2
)[CO
 
3
]
 
3
11.11.20Znucalite
Zn
 
12
Ca(UO
 
2
)[(OH)
 
22
|(CO
 
3
)
 
3
] · 4H
 
2
O

Other Names for Swartzite

Other Languages:
German:Swartzit
Russian:Свартцит
Spanish:Swartzita

Other Information

Fluorescence in UV light:Bright green (UV).
Other Information: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 Swartzite

Reference List:Program Abstract, Mineralogical Society of America (1948), p. 4.

Axelrod, Grimaldi, Milton, and Murata (1951) American Mineralogist: 36: 1-22.

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: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 238-239.

US Geological Survey Bulletin 1064 (1958): 117.

Mereiter, K. (1986b) Synthetic swartzite CaMg[UO2(CO3)3]·12H2O, and its strontium analogue, SrMg[UO2(CO3)3]·12H2O: crystallography and crystal structures. Neues Jahrbuch für Mineralogie, Monatshefte (1986): 481-492.

Burns, P.C. (2005) U 6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

Internet Links for Swartzite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Swartzite in the Natural History Museum (London) online catalogue
  • Swartzite details from Handbook of Mineralogy (PDF)
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    Localities for Swartzite

    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.
    (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
      • Yavapai Co.
        • Eureka District
          • Bagdad
            • Bozarth Mesa
    		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: 236, 238; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 111, 365, 387; Axelrod, J.M., et al (1951), The uranium minerals from the Hillside mine, Yavapai Co., AZ, Am.Min.: 36: 1-22; Frondel, C.C. (1958), Systematic mineralogy of uranium and thorium, USGS Bull. 1064: 119; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 51; Dana 7:II:236 & 238.
    • Colorado
      • Garfield Co.
        • East Rifle Creek area
    		Minerals of Colorado (1997) Eckel, E. B.
      • Jefferson Co.
        • Ralston Buttes District
    		Minerals of Colorado (1997) Eckels, E. B.
    • Utah
      • San Juan Co.
        • Elk Ridge
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    Mineral and/or Locality
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