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Kemmlitzite

A valid IMA mineral species
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01661380017271924198648.jpg
Kemmlitzite

Falotta, Tinizong, Surses, Albula Region, Grisons, Switzerland
08849200017271924219951.jpg
Kemmlitzite, etc.

Falotta, Tinizong, Surses, Albula Region, Grisons, Switzerland
05749370017271924254049.jpg
Kemmlitzite

Kemmlitz, MĂŒgeln, Nordsachsen, Saxony, Germany
01661380017271924198648.jpg
Kemmlitzite

Falotta, Tinizong, Surses, Albula Region, Grisons, Switzerland
08849200017271924219951.jpg
Kemmlitzite, etc.

Falotta, Tinizong, Surses, Albula Region, Grisons, Switzerland
05749370017271924254049.jpg
Kemmlitzite

Kemmlitz, MĂŒgeln, Nordsachsen, Saxony, Germany
01661380017271924198648.jpg
Kemmlitzite

Falotta, Tinizong, Surses, Albula Region, Grisons, Switzerland
08849200017271924219951.jpg
Kemmlitzite, etc.

Falotta, Tinizong, Surses, Albula Region, Grisons, Switzerland
Hide all sections | Show all sections

About KemmlitziteHide

02980740017271924301117.jpg
View of the Kemmlitz kaolinite mining area, in 1920.

Kemmlitz, MĂŒgeln, Nordsachsen, Saxony, Germany
Formula:
SrAl3(AsO4)(SO4)(OH)6
Colour:
Light grayish-brown, colorless, brownish (zonal)
Hardness:
5œ
Specific Gravity:
3.63
Crystal System:
Trigonal
Name:
Named for the type locality of Kemmlitz, Germany.
The Sr analogue of hidalgoite.
The Al analogue of oberwolfachite.
The As analogue of svanbergite.


Unique IdentifiersHide

Mindat ID:
2182
Long-form identifier:
mindat:1:1:2182:7

IMA Classification of KemmlitziteHide

Classification of KemmlitziteHide

Strunz-mindat (2026):
8.BL.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
Dana 8th ed.:
43.4.1.7

43 : COMPOUND PHOSPHATES, ETC.
4 : Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Hey's CIM Ref.:
22.3.10

22 : Phosphates, Arsenates or Vanadates with other Anions
3 : Phosphates, arsenates or vanadates with sulphates

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
KmlIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of KemmlitziteHide

Transparency:
Transparent, Translucent
Colour:
Light grayish-brown, colorless, brownish (zonal)
Hardness:
5œ on Mohs scale
Cleavage:
Poor/Indistinct
Poor on {0001}
Density:
3.63 g/cm3 (Measured)    3.601 g/cm3 (Calculated)

Optical Data of KemmlitziteHide

Type:
Uniaxial (+)
RI values:
nω = 1.701(1) nΔ = 1.707(1)
Max. Birefringence:
ÎŽ = 0.006
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 ”m thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.

Surface Relief:
Moderate

Chemistry of KemmlitziteHide

Mindat Formula:
SrAl3(AsO4)(SO4)(OH)6
Element Weights:
Element% weight
O44.303 %
Sr17.330 %
Al16.010 %
As14.819 %
S6.342 %
H1.196 %

Calculated from ideal end-member formula.
Elements listed:
Al, As, H, O, S, Sr - search for minerals with similar chemistry

Crystallography of KemmlitziteHide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Setting:
R3m
Cell Parameters:
a = 7.072(1) Å, c = 16.51(1) Å
Ratio:
a:c = 1 : 2.335
Unit Cell V:
715.09 ų (Calculated from Unit Cell)
Z:
3
Comment:
Space Group: by analogy to beudantite

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.71 Å(70)
3.514 Å(90)
2.959 Å(100)
2.751 Å(50)
2.203 Å(80)
1.903 Å(90)
1.757 Å(80)
1.635 Å(50b)
1.456 Å(50)
1.292 Å(60)

Geological EnvironmentHide

Type Occurrence of KemmlitziteHide

Type Locality:
ⓘ Kemmlitz, MĂŒgeln, Nordsachsen, Saxony, Germany
General Appearance of Type Material:
Pseudo-cubic rhombohedral crystals with average rhombohedron edge 0.1-0.15 mm.
Place of Conservation of Type Material:
National Museum, Prague, Czech Republic, 53508.
National School of Mines, Paris, France.
Harvard University, Cambridge, Massachusetts, USA, 109097.

Geological Setting of Type Material:
Kaolinized quartz porphyry.
Associated Minerals at Type Locality:
AnataseApatiteKaoliniteZircon
Reference:
Hak, J., Johan, Z., Kvacek, M. and Liebscher, W. (1969) Kemmlitzite, a new mineral of the woodhouseite group. Neues Jahrbuch fĂŒr Mineralogie, Monatshefte: 1969: 201-212.

Other Language Names for KemmlitziteHide

Relationship of Kemmlitzite to other SpeciesHide

Member of:
Beudantite Group > Alunite Supergroup
Other Members of Beudantite Group:
BeudantitePbFe3+3(AsO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
ClouditeBaFe3+3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
CorkitePbFe3+3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
GallobeudantitePbGa3(AsO4)(SO4)(OH)6Trig. 3m : R3m
HidalgoitePbAl3(AsO4)(SO4)(OH)6Trig. 3m : R3m
HinsdalitePbAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
OberwolfachiteSrFe3+3(AsO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
SvanbergiteSrAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
UM2011-07-POSO:AlBaHBaAl3(PO4)(SO4)(OH)6
Unnamed (Fe-analogue of Weilerite and Ba-analogue of Oberwolfachite)BaFe3(AsO4)(SO4)(OH)6
WeileriteBaAl3(AsO4)(SO4)(OH)6Hex.
WoodhouseiteCaAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Kemmlitzite associated with QuartzSiO2
3 photos of Kemmlitzite associated with SvanbergiteSrAl3(PO4)(SO4)(OH)6
1 photo of Kemmlitzite associated with AlbiteNa(AlSi3O8)
1 photo of Kemmlitzite associated with OliveniteCu2(AsO4)(OH)
1 photo of Kemmlitzite associated with TilasiteCaMg(AsO4)F

Related Minerals - Strunz-mindat GroupingHide

8.BL.KiryuiteNaMnAl(PO4)F3Mon. 2/m : P21/m
8.BL.MetaheimitePbCu2(AsO4)(OH)3Mon. 2/m : P21/b
8.BL.Graulichite-(La)LaFe3+3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.ClouditeBaFe3+3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.OberwolfachiteSrFe3+3(AsO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05GallobeudantitePbGa3(AsO4)(SO4)(OH)6Trig. 3m : R3m
8.BL.05SlottaiteSrFe3+3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05CorkitePbFe3+3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05HidalgoitePbAl3(AsO4)(SO4)(OH)6Trig. 3m : R3m
8.BL.05HinsdalitePbAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05UM2011-07-POSO:AlBaHBaAl3(PO4)(SO4)(OH)6
8.BL.05BeudantitePbFe3+3(AsO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05WeileriteBaAl3(AsO4)(SO4)(OH)6Hex.
8.BL.05WoodhouseiteCaAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.05SvanbergiteSrAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10SegnititePbFe3+3AsO4(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10ArsenogoyaziteSrAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10ArsenogorceixiteBaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10DussertiteBaFe3+3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10GalloplumbogummitePb(Ga,Al,Ge)3(PO4)2(OH)6Trig. 3m : R3m
8.BL.10StibiosegnititePb(Fe3+2.5Sb5+0.5)(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10 vaViséite
8.BL.10ArsenocrandalliteCaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m)
8.BL.10BenauiteSrFe3+3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10PhilipsbornitePbAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10CrandalliteCaAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10SpringcreekiteBaV3+3(PO4)2(OH,H2O)6Trig. 3m (3 2/m) : R3m
8.BL.10EylettersiteTh0.75Al3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10KintoreitePbFe3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10PlumbogummitePbAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.10GorceixiteBaAl3(PO4)(PO3OH)(OH)6Mon. m : Bm
8.BL.10GoyaziteSrAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Florencite-(Ce)CeAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Florencite-(La)LaAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Florencite-(Nd)NdAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13ZaĂŻriteBiFe3+3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Arsenoflorencite-(La)LaAl3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Arsenoflorencite-(Nd)NdAl3(AsO4)2(OH)6Trig.
8.BL.13Unnamed (As-analogue of ZaĂŻrite)(Bi,Pb)Fe3+3(AsO4)2(OH)6
8.BL.13Arsenoflorencite-(Ce)CeAl3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Graulichite-(Ce)CeFe3+3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13ArsenowaylanditeBiAl3(AsO4)2(OH)6Trig.
8.BL.13WaylanditeBiAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.13Florencite-(Sm)SmAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
8.BL.15ViitaniemiiteNa(Ca,Mn2+)Al(PO4)(F,OH)3Mon. 2/m : P21/m
8.BL.25PattersonitePbFe3+3(PO4)2(OH)5 · H2OTric. 1 : P1

Other InformationHide

Notes:
Resistant to mineral acids
Low magnetic susceptibility.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for KemmlitziteHide

References for KemmlitziteHide

Localities for KemmlitziteHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Czech Republic
 
  • Hradec KrĂĄlovĂ© Region
    • Trutnov District
      • DolnĂ­ OleĆĄnice
        • Vestƙev
Moravec (200) +1 other reference
  • ÚstĂ­ nad Labem Region
    • Litoměƙice District
      • Podsedice
NovĂĄk et al. (1998)
Germany
 
  • Rhineland-Palatinate
    • Trier-Saarburg
      • Saarburg-Kell
        • Greimerath
Aufschluß 76/2 & 88/5
  • Saarland
    • Merzig-Wadern
Stefan Wolfsried and Ɓukasz Kruszewski collections (EDS-analysed by GĂŒnter Blass)
  • Saxony
    • Nordsachsen
      • MĂŒgeln
Hak et al. (1969) +1 other reference
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
SEM-EDS analysed by Chollet Pascal at ... +1 other reference
Spain
 
  • Andalusia
    • AlmerĂ­a
      • TĂ­jola
Calvo Rebollar et al. (2022)
Switzerland
 
  • Grisons
    • Albula Region
      • Surses
        • Tinizong (Tinzen)
Stalder et al. (1998)
    • Viamala Region
      • Ferrera
        • Innerferrera (Calantgil)
Brugger et al. (1997)
USA
 
  • Wisconsin
    • Rusk County
      • Ladysmith
LaBerge et al. (1999)
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