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Swartzite

Big Photo

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

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

    Show Locality List (4 Items)
    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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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 26th Nov 2009 00:27:57