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Sulphur-β

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About Sulphur-βHide

Formula:
S8
Like α-sulphur, made of S8 rings.
Colour:
pale yellow
Specific Gravity:
2.0
Crystal System:
Monoclinic
Member of:
Polymorph of:
Stable >95.39°C, metastable at room temperature, less dense than sulphur (α-sulphur).
Pure crystals of the metastable monoclinic form can be preserved for weeks at room temperature.
It can be prepared by crystallising at 100°C and cooling rapidly to slow down formation of sulphur (α-sulphur).


Classification of Sulphur-βHide

Approved, 'Grandfathered' (first described prior to 1959)

Physical Properties of Sulphur-βHide

Transparency:
Transparent
Colour:
pale yellow
Density:
2.0 g/cm3 (Measured)    

Chemical Properties of Sulphur-βHide

Formula:
S8

Like α-sulphur, made of S8 rings.
IMA Formula:
S

Crystallography of Sulphur-βHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/a
Cell Parameters:
a = 10.778 Å, b = 10.844 Å, c = 10.924 Å
β = 95.80°
Ratio:
a:b:c = 0.994 : 1 : 1.007
Unit Cell V:
1,270.22 ų (Calculated from Unit Cell)

Type Occurrence of Sulphur-βHide

Geological Setting of Type Material:
Fumaroles in the crater of a dormant volcano.

Synonyms of Sulphur-βHide

Relationship of Sulphur-β to other SpeciesHide

Member of:
Other Members of this group:
RosickýiteSMon. 2/m : P2/b
SulphurS8Orth. mmm (2/m 2/m 2/m) : Fddd

Common AssociatesHide

Associated Minerals Based on Photo Data:
Opal3 photos of Sulphur-β associated with Opal on mindat.org.
Cristobalite3 photos of Sulphur-β associated with Cristobalite on mindat.org.

Other InformationHide

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 Sulphur-βHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Panichi, U. (1912): Sullo zolfo di Vulcano (Isole Eolie). Atti dell'Accademia Gioenia di Scienze Naturali in Catania, Serie 5, Vol.5, 1-15.
Sands, D. E. (1965): The crystal structure of monoclinic (β) sulfur. Journal of the American Chemical Society 87, 1395-1396.
Templeton, L. K., Templeton, D. H. & Zalkin, A. (1976): Crystal structure of monoclinic sulfur. Inorg. Chem. 15, 1999-2001.
Goldsmith, L. M. & Strouse, C. E. (1977): Molecular dynamics in the solid state. The order-disorder transition of monoclinic sulfur. Journal of the American Chemical Society 99, 7580-7589.
Taylor, P. & Rummery, T. E. (1978): The redetermined x-ray powder diffraction pattern of β-sulfur. Journal of Inorganic and Nuclear Chemistry 40, 1444-14446.
Wiberg, N. (1985) Hollemann-Wiberg Lehrbuch der Anorganischen Chemie, 91.-100. ed.
David, W. I. F.; Ibberson, R. M.; Cox, S. F. J.; Wood, P. T. (2006): Order-disorder transition in monoclinic sulfur: a precise structural study by high-resolution neutron powder diffraction. Acta Crystallographica, B62, 953-959.
David, W. I. F.; Ibberson, R. M.; Cox, S. F. J.; Wood, P. T. (2007): Order-disorder transition in monoclinic sulfur: a precise structural study by high-resolution neutron powder diffraction. Acta Crystallographica, B63, 803. [Erratum]

Internet Links for Sulphur-βHide

Localities for Sulphur-βHide

ⓘ - 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.
Czech Republic
 
  • Central Bohemia Region
Zacek, V., Oplustil, S., Mayova, A. & Meyer, F. R. (1995): Die Mineralien von Kladno in Mittelböhmen, Tschechische Republik. Mineralien-Welt 6 (1), 13-30 (in German).
  • South Moravia Region
    • Oslavany
Hršelová, P., Cempírek, J., Houzar, S., Sejkora, J. (2013): S,F,Cl-rich mineral assemblages from burned spoil heaps in the Rosice-Oslavany coalfield, Czech Republic. Can. Mineral.: 51(1): 171-188
Hungary
 
  • Heves Co.
    • Mátra Mts
Tokody, L. (1954): The occurrence of native α- and β-sulfur at Recsk, Mátra Mountains. Ann. Hist.-Nat. Musei Natl. Hung. 5, 15-19. (in German)
Italy (TL)
 
  • Sicily
    • Messina Province
      • Eolie Islands (Aeolian Islands)
        • Lipari
          • Vulcano Island
Panichi, U. (1912): Sullo zolfo di Vulcano (Isole Eolie). Atti dell'Accademia Gioenia di Scienze Naturali in Catania, Serie 5, Vol.5, 1-15.
Japan
 
  • Kyushu Region
    • Nansei Archipelago
      • Kagoshima Prefecture
        • Mishima village
          • Satsuma-Ioujima (Satsuma-Iwojima; Iou island)
            • Iodake (Iwodake; Ioudake)
Amir Akhavan Field Observations
USA
 
  • Pennsylvania
    • Schuylkill Co.
Finkelman, R. B. & Mrose, M. E. (1977): Downeyite, the first verified natural occurrence of selenium dioxide. American Mineralogist 62, 316-320.
Mineral and/or Locality  
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