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Swedenborgite

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Emanuel Swedenborg
Formula:
NaBe4Sb5+O7
System:
Hexagonal
Colour:
Colourless, pale wine- ...
Hardness:
8
Name:
Named after Emanuel Swedenborg (1688-1772), Swedish scientist, philosopher, and religious writer.
This page provides mineralogical data about Swedenborgite.

Classification of Swedenborgite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
4.AC.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
A : Metal: Oxygen = 2:1 and 1:1
C : M:O = 1:1 (and up to 1:1.25); with large cations (+- smaller ones)
Dana 7th ed.:
44.2.2.0
44.3.1.1

44 : ANTIMONATES
3 : Miscellaneous
24.2.1

24 : Antimonates and Antimonites
2 : Antimonates of Be, Mg, Ca, Zn or Hg
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http://www.mindat.org/min-3845.html
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Type Occurrence of Swedenborgite

Place of Conservation of Type Material:
Swedish Museum of Natural History, Stockholm, Sweden. The Natural History Museum, London, England: #1924,560.
Year of Discovery:
1924
Geological Setting of Type Material:
Skarn in a metamorphosed Fe-Mn ore body.
Associated Minerals at Type Locality:

Physical Properties of Swedenborgite

Vitreous
Diaphaneity (Transparency):
Transparent
Colour:
Colourless, pale wine- to honey-yellow; colourless in transmitted light
Hardness (Mohs):
8
Cleavage:
Distinct/Good
On {0001}, distinct.
Fracture:
Sub-Conchoidal
Density:
4.285 g/cm3 (Measured)    4.28 g/cm3 (Calculated)

Crystallography of Swedenborgite

Crystal System:
Hexagonal
Class (H-M):
6mm - Dihexagonal Pyramidal
Space Group:
P63mc
Cell Parameters:
a = 5.442Å, c = 8.848Å
Ratio:
a:c = 1 : 1.626
Unit Cell Volume:
V 226.93 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Crystals short prismatic {1010}, {1011}, and {0001} prominent. May be morphologically hemihedral with c and p unequally developed at opposite terminations of {0001} at times.
Twinning:
Observed, not described.

Optical Data of Swedenborgite

Type:
Uniaxial (-)
RI values:
nω = 1.772 nε = 1.770
Max Birefringence:
δ = 0.002
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
Strong

Chemical Properties of Swedenborgite

Formula:
NaBe4Sb5+O7
Essential elements:
All elements listed in formula:

Relationship of Swedenborgite to other Species

4.AC.10BrownmilleriteCa2(Al,Fe3+)2O5
4.AC.10SrebrodolskiteCa2Fe23+O5
4.AC.15MontroyditeHgO
4.AC.20LithargePbO
4.AC.20RomarchiteSnO
4.AC.25MassicotPbO
24.2.2ByströmiteMgSb2O6
24.2.3Roméite Group
24.2.4OrdoñeziteZnSb2O6
24.2.5TheisiteCu5Zn5(AsO4,SbO4)2(OH)14
24.2.6Shakhovite(Hg2+)Hg22+(Sb3+O3)(OH)3

Other Names for Swedenborgite

Name in Other Languages:

Other Information

Other Information:
Insoluble in acids. Decomposed by fusion with Na2CO3 or KHSO4.
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 Swedenborgite

Reference List:
Aminoff (1924) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 60: 262.

Gossner (1925) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 289 (morphological resemblance to corundum).

Aminoff (1933) Svenska Vetenskapsakademien, Stockholm, Handlingar: [3]: 11, no. 4: 3.

Pauling, L., H.P. Klug, and A.N. Winchell (1935) The crystal structure of swedenborgite, NaBe4SbO7. American Mineralogist: 20: 492–501.

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.: 1027-1029.

Welin, E. (1968) X-ray powder data for inerals from Långban and the related mineral deposits of Central Sweden. Arkiv Mineral. Geol., 4(30), 499–541.

Internet Links for Swedenborgite

Localities for Swedenborgite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Sweden (TL)
 
  • Värmland
    • Filipstad
Zeits. Krist. Min. (1924): 60, 262; 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: 1028; Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
Mineral and/or Locality  
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