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Orschallite

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Orschallite, etc.

Shaft #8, Nipissing 404, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
Orschallite

Shaft #8, Nipissing 404, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
Orschallite, etc.

Shaft #8, Nipissing 404, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
Orschallite

Shaft #8, Nipissing 404, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
Orschallite, etc.

Shaft #8, Nipissing 404, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
Orschallite

Shaft #8, Nipissing 404, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
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About OrschalliteHide

Formula:
Ca3(SO3)2(SO4) · 12H2O
Hardness:
4
Specific Gravity:
1.90
Crystal System:
Trigonal
Name:
In honour of P. Orschall, Cologne, Germany, who discovered the mineral.
This page provides mineralogical data about Orschallite.


Classification of OrschalliteHide

IMA status:
Approved
Approval Year:
1990
Strunz 8th ed.:
4/K.05-15
Nickel-Strunz 10th (pending) ed.:
4.JE.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
E : Sulfites
Dana 8th ed.:
34.8.7.1

34 : SELENITES, TELLURITES AND SULFITES
8 : Compound Selenites, Tellurites and Sulfites

Physical Properties of OrschalliteHide

Hardness:
4 on Mohs scale
Density:
1.90(3) g/cm3 (Measured)    1.87 g/cm3 (Calculated)

Optical Data of OrschalliteHide

Type:
Uniaxial (+)
RI values:
nω = 1.494 nε = 1.496
Max Birefringence:
δ = 0.002
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of OrschalliteHide

Formula:
Ca3(SO3)2(SO4) · 12H2O
IMA Formula:
Ca3(S4+O3)2(SO4) · 12H2O
Elements listed:
Ca, H, O, S - search for minerals with similar chemistry

Crystallography of OrschalliteHide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3c
Setting:
R3c
Cell Parameters:
a = 11.35 Å, c = 28.32 Å
Ratio:
a:c = 1 : 2.495
Unit Cell V:
3,159.48 ų (Calculated from Unit Cell)
Z:
6

Type Occurrence of OrschalliteHide

Type Locality:
ⓘ Hannebacher Ley (Hannebacher Lay), Hannebach, Niederzissen, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
Place of Conservation of Type Material:
University of Vienna, Austria
Geological Setting of Type Material:
Submarine pillow basalts.
Associated Minerals at Type Locality:
NephelineLeuciteClinopyroxene SubgroupApatitePhillipsite

Synonyms of OrschalliteHide

Other Language Names for OrschalliteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Dolomite6 photos of Orschallite associated with Dolomite on mindat.org.
Picropharmacolite6 photos of Orschallite associated with Picropharmacolite on mindat.org.
Bismuth1 photo of Orschallite associated with Bismuth on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.JE.XAlbertiniiteFe2+(SO3)·3H2OMon. 2/m
4.JE.05GravegliaiteMn2+SO3 · 3H2OOrth.
4.JE.10HannebachiteCaSO3 · H2OOrth. mmm (2/m 2/m 2/m)
4.JE.20ScotlanditePbSO3Mon. 2/m

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 OrschalliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Weidenthaler, C., Tillmanns, E., Hentschel, G. (1993): Orschallite, Ca3(SO3)2SO4.12H2O, a new calcium-sulfite-sulfate-hydrate mineral. Mineralogy and Petrology, 48, 167-177.
Frost, R. L. and Keeffe, E. C. (2009): Raman spectroscopic study of the sulphite bearing minerals scotlandite, hannebachite and orschallite – implications for the desulphation of soils. Journal of Raman Spectroscopy, 40, 244-248.

Internet Links for OrschalliteHide

Localities for OrschalliteHide

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.
Canada
 
  • Ontario
    • Timiskaming District
      • Cobalt-Gowganda region
        • Cobalt area
          • Coleman Township
Reiner Mielke 2015
Reiner Mielke 2016
France
 
  • Occitanie
    • Aveyron
Eytier J.R. & Ch., Favreau G., Devouard B., Vigier J. (2004), Minéraux de pyrométamorphisme de Lapanouse-de Sévérac (Aveyron), Cahier des Micromonteurs, n°85, pp: 3-58
Germany (TL)
 
  • Rhineland-Palatinate
    • Ahrweiler
      • Brohltal
        • Niederzissen
          • Hannebach
Weidenthaler, C., Tillmanns, E., Hentschel, G. (1993): Orschallite, Ca3(SO3)2SO4*12H2O, a new calcium-sulfite-sulfate-hydrate mineral. Mineralogy and Petrology, 48, 167-177 ; NM 90-94 (1997)
USA
 
  • Utah
    • Grand Co.
      • Thompsons District (S. E. Thomsons)
        • Yellow Cat Mesa
Kasatkin, A.V., Plášil, J., Marty, J., Belakovskiy, D.I., Lykova, I.S. (2014): Nestolaite, CaSeO3·H2O, a new mineral from the Little Eva mine, Grand County, Utah, USA. Mineralogical Magazine, 78, 497-505.
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