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Klöchite

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Klöchite

Basalt quarry, Klöch, Bad Radkersburg, Styria, Austria
Klöchite

Basalt quarry, Klöch, Bad Radkersburg, Styria, Austria
Klöchite

Basalt quarry, Klöch, Bad Radkersburg, Styria, Austria
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About KlöchiteHide

Formula:
(□Na)KFe2+2Zn3(Si12O30)
Colour:
Blue
Lustre:
Vitreous
Specific Gravity:
3.007 (Calculated)
Crystal System:
Hexagonal
Member of:
Osumilite Group
Name:
Named after the type locality, Klöch in Styria.
Osumilite Group.


Classification of KlöchiteHide

IMA status:
Approved
Approval Year:
2007

Physical Properties of KlöchiteHide

Lustre:
Vitreous
Transparency:
Translucent
Colour:
Blue
Density:
3.007 g/cm3 (Calculated)

Optical Data of KlöchiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.594() nε = 1.950(1)
Max Birefringence:
δ = 0.356
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Pleochroism:
Strong
Comments:
Omega: dark blue; epsilon: pale yellow.

Chemical Properties of KlöchiteHide

Formula:
(□Na)KFe2+2Zn3(Si12O30)
IMA Formula:
(Fe2+Fe3+)◻2KZn3(Si12O30)
Elements listed:
Fe, K, Na, O, Si, Zn - search for minerals with similar chemistry

Crystallography of KlöchiteHide

Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mmc
Cell Parameters:
a = 10.120 Å, c = 14.298 Å
Ratio:
a:c = 1 : 1.413
Unit Cell V:
1,268.14 ų (Calculated from Unit Cell)
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.149 (100)
5.540 (43)
4.130 (40)
3.736 (70)
3.227 (67)
2.920 (40)
2.770 (68)
2.530 (43)

Type Occurrence of KlöchiteHide

Type Locality:
ⓘ Basalt quarry, Klöch, Bad Radkersburg, Styria, Austria
General Appearance of Type Material:
Small blue hexagonal plates.
Geological Setting of Type Material:
In xenolith
Associated Minerals at Type Locality:
Mottramite

Synonyms of KlöchiteHide

Other Language Names for KlöchiteHide

Arabic:Klöchite
German:Klöchit

Relationship of Klöchite to other SpeciesHide

Member of:
Osumilite Group
Other Members of this group:
Agakhanovite-(Y)(YCa)□2KBe3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
AlmaruditeK(□,Na)2(Mn2+,Fe2+,Mg)2(Be,Al)3[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
ArmeniteBaCa2Al6Si9O30 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnna
BerezanskiteK□2Li3(Ti,Zr,Sn)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
Brannockite(K,Na)□2Li3(Sn,Zr,Ti)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
DarapiositeK(Na,◻,K)2(Li,Zn,Fe)3(Mn,Zr,Y)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
DusmatoviteK(Na,□)2(Zn,Li)3(Mn2+,Y,Zr)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
EifeliteKNa3Mg4Si12O30Hex.
FriedrichbeckeiteK(□0.5Na0.5)2Mg2Be3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
Merrihueite(K,Na)2(Fe,Mg)5Si12O30Hex.
MilariteK2Ca4Al2Be4Si24O60 · H2OHex. 6/mmm (6/m 2/m 2/m) : P6/mcc
OftedaliteK(Sc,Ca,Mn2+)2◻2[(Be,Al)3Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
Osumilite(K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30Hex.
Osumilite-(Mg)KMg2Al3(Al2Si10)O30 Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
PoudretteiteKNa2B3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
Roedderite(Na,K)2(Mg,Fe)5Si12O30Hex. 6 m2 : P62c
ShibkoviteK(□,K,Na)2Zn3Ca2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
SogdianiteK(□,Na)2Li3(Zr,Fe,Ti)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
SugiliteK(Na,□)2Li3(Fe,Mn,Al,Zr)2[Si12O30]Hex.
Trattnerite□(Fe3+,Mg,Fe2+)2(Mg,Fe2+,Fe3+)3(Si12O30)Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
UM1990-73-SiO:KMnNaZn(K,Na)2Zn3Mn1.5Si12O30Hex.
Unnamed (Al-dominant analog of Sugilite)K(Na,□)2Li3(Al,Mn,Fe)2[Si12O30]
Yagiite(Na,K)3Mg4(Al,Mg)6(Si,Al)24O60Hex. 6/mmm (6/m 2/m 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 KlöchiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
IMA website - Proposals approved in February 2008
Walter, F. (2009): Der Steirische Mineralog, Jg. 18, H. 23, 8-13.
Bojar, H. P., Walter, F., Hauzenberger, C., & Postl, W. (2011). Klöchite, K□ 2 (Fe2+ Fe3+) Zn3 [Si12O30], A New Milarite-Type Mineral Species From The Klöch Volcano, Styria, Austria. The Canadian Mineralogist, 49(4), 1115-1124.

Internet Links for KlöchiteHide

Localities for KlöchiteHide

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.
Austria (TL)
 
  • Styria
    • Bad Radkersburg
      • Klöch
IMA website - Proposals approved in February 2008
Mineral and/or Locality  
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