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Swartzite

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About SwartziteHide

Formula:
MgCa(UO2)(CO3)3 · 12H2O
Colour:
Bright green, yellowish-white (dehydrated).
Specific Gravity:
2.3
Crystal System:
Monoclinic
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 SwartziteHide

Approved, 'Grandfathered' (first described prior to 1959)
5.ED.10

5 : CARBONATES (NITRATES)
E : Uranyl Carbonates
D : UO2:CO3 = 1:3
15.3.3.2

15 : HYDRATED NORMAL CARBONATES
3 : AmBn(XO3)p·xH2O, with (m+n):p = 1:1
11.11.13

11 : Carbonates
11 : Carbonates of Cr and U

Physical Properties of SwartziteHide

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

Optical Data of SwartziteHide

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

Formula:
MgCa(UO2)(CO3)3 · 12H2O
IMA Formula:
CaMg(UO2)(CO3)3 · 12H2O

Crystallography of SwartziteHide

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

Type Occurrence of SwartziteHide

Other Language Names for SwartziteHide

German:Swartzit
Spanish:Swartzita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Gypsum1 photo of Swartzite associated with Gypsum on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

5.ED.05BayleyiteMg2(UO2)(CO3)3 · 18H2OMon.
5.ED.15AlbrechtschraufiteCa4Mg(UO2)2(CO3)6F2 · 17-18H2OTric. 1 : P1
5.ED.20LiebigiteCa2(UO2)(CO3)3 · 11H2OOrth. mm2
5.ED.25RabbittiteCa3Mg3(UO2)2(CO3)6(OH)4 · 18H2OMon.
5.ED.30AndersoniteNa2Ca(UO2)(CO3)3 · 6H2OTrig. 3 : R3
5.ED.35GrimseliteK3Na(UO2)(CO3)3 · H2OHex.
5.ED.40WidenmannitePb2(OH)2[(UO2)(CO3)2]Orth.
5.ED.45ZnucaliteZn12Ca(UO2)(CO3)3(OH)22 · 4H2OOrth.
5.ED.50ČejkaiteNa4(UO2)(CO3)3Tric.
5.ED.50AgricolaiteK4(UO2)(CO3)3Mon. 2/m : B2/b

Related Minerals - Dana Grouping (8th Ed.)Hide

15.3.3.1BayleyiteMg2(UO2)(CO3)3 · 18H2OMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

11.11.1StichtiteMg6Cr3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
11.11.2Rutherfordine(UO2)CO3Orth. mm2 : Imm2
11.11.3Joliotite(UO2)CO3 · nH2OOrth.
11.11.4GrimseliteK3Na(UO2)(CO3)3 · H2OHex.
11.11.5BayleyiteMg2(UO2)(CO3)3 · 18H2OMon.
11.11.6MetazelleriteCa(UO2)(CO3)2 · 3H2OOrth.
11.11.7ZelleriteCa(UO2)(CO3)2 · 5H2OOrth.
11.11.8WyartiteCaU5+(UO2)2(CO3)O4(OH) · 7H2OOrth.
11.11.9UrancalcariteCa(UO2)3(CO3)(OH)6 · 3H2OOrth.
11.11.10SharpiteCa(UO2)3(CO3)4 · 3H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
11.11.11VogliteCa2Cu(UO2)(CO3)4 · 6H2OMon.
11.11.12AndersoniteNa2Ca(UO2)(CO3)3 · 6H2OTrig. 3 : R3
11.11.14RabbittiteCa3Mg3(UO2)2(CO3)6(OH)4 · 18H2OMon.
11.11.15Kamotoite-(Y)Y2(UO2)4(CO3)3O4 · 14H2OMon. 2/m
11.11.16Shabaite-(Nd)Ca(Nd,Sm,Y)2(UO2)(CO3)4(OH)2 · 6H2O
11.11.17Astrocyanite-(Ce)Cu2(Ce,Nd,La)2(UO2)(CO3)5(OH)2 · 1.5H2OHex.
11.11.18Bijvoetite-(Y)Y8(UO2)16(CO3)16O8(OH)8 · 39H2OMon.
11.11.19WidenmannitePb2(OH)2[(UO2)(CO3)2]Orth.
11.11.20ZnucaliteZn12Ca(UO2)(CO3)3(OH)22 · 4H2OOrth.

Fluorescence of SwartziteHide

Bright green (UV).

Other InformationHide

Notes:
Soluble in water.
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 SwartziteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 SwartziteHide

Localities for SwartziteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
USA (TL)
 
  • 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.; Axelrod, J.M., et al (1951), The uranium minerals from the Hillside mine, Yavapai County, Arizona, American Mineralogist: 36: 1-22.
  • Colorado
    • Garfield Co.
      • East Rifle Creek area
Minerals of Colorado (1997) Eckel, E. B.
    • Jefferson Co.
      • Ralston Buttes District
Minerals of Colorado (1997) Eckel, E. B.
  • Utah
    • San Juan Co.
      • White Canyon District
        • Elk Ridge
UGMS Bull 117 Minerals and Mineral Localities of Utah
Mineral and/or Locality  
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