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Ternesite

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About TernesiteHide

Bernd Ternes
Formula:
Ca5(SiO4)2(SO4)
Colour:
pale blue, brown, light green, colourless
Lustre:
Vitreous
Hardness:
4½ - 5
Crystal System:
Orthorhombic
Name:
For the collector Bernd Ternes of Mayen, Germany, who found the mineral and provided specimens for study. Mr. Ternes is a specialist on the minerals of the Eifel area in Germany.
Isotypic with "silicocarnotite."


Classification of TernesiteHide

Approved
Approval Year:
1995
9.AH.20

9 : SILICATES (Germanates)
A : Nesosilicates
H : Nesosilicates with CO3, SO4, PO4, etc.

Physical Properties of TernesiteHide

Vitreous
Colour:
pale blue, brown, light green, colourless
Streak:
white
Hardness:
4½ - 5 on Mohs scale
Cleavage:
None Observed

Optical Data of TernesiteHide

Type:
Biaxial (-)
RI values:
nα = 1.630 nβ = 1.637 nγ = 1.640
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v

Chemical Properties of TernesiteHide

Formula:
Ca5(SiO4)2(SO4)

Crystallography of TernesiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Cell Parameters:
a = 6.863 Å, b = 15.387 Å, c = 10.181 Å
Ratio:
a:b:c = 0.446 : 1 : 0.662
Unit Cell V:
1,075.12 ų (Calculated from Unit Cell)
Comment:

Type Occurrence of TernesiteHide

Synonyms of TernesiteHide

Other Language Names for TernesiteHide

German:Ternesit
Simplified Chinese:硫硅钙石
Spanish:Ternesita
Traditional Chinese:硫矽鈣石

Relationship of Ternesite to other SpeciesHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Aragonite1 photo of Ternesite associated with Aragonite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.AH.05Iimoriite-(Y)Y2[SiO4][CO3]Tric.
9.AH.10Tundrite-(Ce)Na2Ce2Ti(SiO4)(CO3)2O2Tric. 1 : P1
9.AH.10Tundrite-(Nd)Na2(Nd,Ce)2Ti(SiO4)(CO3)2O2
9.AH.15SpurriteCa5(SiO4)2(CO3)Mon.
9.AH.25Britholite-(Ce)(Ce,Ca)5(SiO4)3OHHex. 6/m : P63/m
9.AH.25Britholite-(Y)(Y,Ca)5(SiO4)3OHHex. 6/m : P63/m
9.AH.25ChlorellestaditeCa5(SiO4)1.5(SO4)1.5ClHex. 6/m : P63/m
9.AH.25Fluorbritholite-(Ce)(Ce,Ca)5(SiO4)3FHex. 6/m : P63/m
9.AH.25FluorellestaditeCa5(SiO4)1.5(SO4)1.5FHex.
9.AH.25HydroxylellestaditeCa5(SiO4)1.5(SO4)1.5(OH)Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
9.AH.25MattheddleitePb5(SiO4)1.5(SO4)1.5(Cl,OH)Hex. 6/m : P63/m
9.AH.25Tritomite-(Ce)Ce5(SiO4,BO4)3(OH,O)
9.AH.25Tritomite-(Y)Y5(SiO4,BO4)3(O,OH,F)
9.AH.25Fluorcalciobritholite(Ca,REE)5(SiO4,PO4)3FHex. 6/m : P63/m
9.AH.25Fluorbritholite-(Y)(Y,Ca)5(SiO4)3FHex. 6/m : P63/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 TernesiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Irran, E. (1995): Ternesit, Ca5(SiO4)2SO4, ein neues Mineral vom Bellerberg. Diplomarbeit, Universität Wien, Formal- und Naturwissenschaftliche Fakultät, xx pp.
Irran, E., Tillmanns, E. and Hentschel, G. (1997): Ternesite, Ca5(SiO4)2SO4, a new mineral from the Ettringer Bellerberg/Eifel, Germany. Mineralogy and Petrology 60, 121-132.

Internet Links for TernesiteHide

Localities for TernesiteHide

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.
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
    • Mayen
      • Ettringen
        • Bellerberg volcano
Mineralogy and Petrolology 60 (1997), 121; MR 5 (1998), 477; AM 83 (1998), 187
Sharygin, V. V. (2012). Mineralogy of metacarbonate xenolith from alkali basalt, E. Eifel, Germany. In Ore Potential of Alkaline, Kimberlite and Carbonatite Magmatism. Book of Abstracts, XXIX International Conference. Training Program: Alkaline Magmatism of the Earth, Sudak-Moscow, ONTI GEOCHI RAS (pp. 156-158).
Israel
 
  • Negev
    • Hatrurim Formation
      • Hatrurim (Hatrurim Basin)
Galuskin, E.V., Galuskina, I.O., Gfeller, F., Krüger, B., Kusz, J., Vapnik, Y., Dulski, M., Dzierżanowski, P. (2016): Silicocarnotite, Ca5[(SiO4)(PO4)](PO4), a new ‘old’ mineral from the Negev Desert, Israel, and the ternesite-silicocarnotite solid solution: indicators of high-temperature alteration of pyrometamorphic rocks of the Hatrurim Complex, Southern Levant. European Journal of Mineralogy: 28: 105-12.
Palestine
 
  • West Bank
    • Hatrurim Formation
Galuskina, I.O., Vapnik Ye., Lazic B., Armbruster T., Murashko M. and Galuskin E. Harmunite CaFe2O4: A new mineral from the Jabel Harmun, West Bank, Palestinian Autonomy, Israel. American Mineralogist, 99, 965–975. ; Galuskin, E.V., Gfeller, F., Armbruster, T., Galuskina, I.O., Vapnik, Y., Murashko, M., Włodyka, R., Dzierżanowski, P. (2015): New minerals with a modular structure derived from hatrurite from the pyrometamorphic Hatrurim Complex. Part I. Nabimusaite, KCa12(SiO4)4(SO4)2O2F, from larnite rocks of Jabel Harmun, Palestinian Autonomy, Israel. Mineralogical Magazine, 79, 1061-1072
Mineral and/or Locality  
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