Kemmlitzite
A valid IMA mineral species
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About Kemmlitzite
Formula:
SrAl3(AsO4)(SO4)(OH)6
Colour:
Light grayish-brown, colorless, brownish (zonal)
Hardness:
5½
Specific Gravity:
3.63
Crystal System:
Trigonal
Member of:
Name:
Named for the type locality of Kemmlitz, Germany.
Type Locality:
Unique Identifiers
Mindat ID:
2182
Long-form identifier:
mindat:1:1:2182:7
GUID
(UUID V4):
(UUID V4):
6c4d68d8-633b-4179-95f3-a2cd4c7efd25
IMA Classification of Kemmlitzite
Approved
First published:
1969
Classification of Kemmlitzite
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
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
43.4.1.7
43 : COMPOUND PHOSPHATES, ETC.
4 : Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
43 : COMPOUND PHOSPHATES, ETC.
4 : Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
22.3.10
22 : Phosphates, Arsenates or Vanadates with other Anions
3 : Phosphates, arsenates or vanadates with sulphates
22 : Phosphates, Arsenates or Vanadates with other Anions
3 : Phosphates, arsenates or vanadates with sulphates
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Kml | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Kemmlitzite
Transparency:
Transparent, Translucent
Colour:
Light grayish-brown, colorless, brownish (zonal)
Hardness:
5½ on Mohs scale
Cleavage:
Poor/Indistinct
Poor on {0001}
Poor on {0001}
Density:
3.63 g/cm3 (Measured) 3.601 g/cm3 (Calculated)
Optical Data of Kemmlitzite
Type:
Uniaxial (+)
RI values:
nω = 1.701(1) nε = 1.707(1)
Max Birefringence:
δ = 0.006
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Chemistry of Kemmlitzite
Mindat Formula:
SrAl3(AsO4)(SO4)(OH)6
Crystallography of Kemmlitzite
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 Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 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 Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47b : [Sulfates and sulfites] | |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] |
Type Occurrence of Kemmlitzite
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.
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:
Reference:
Hak, J., Johan, Z., Kvacek, M. and Liebscher, W. (1969) Kemmlitzite, a new mineral of the woodhouseite group. Neues Jahrbuch für Mineralogie, Monatshefte: 1969: 201-212.
Other Language Names for Kemmlitzite
German:Kemmlitzit
Spanish:Kemmlitzita
Relationship of Kemmlitzite to other Species
Member of:
Other Members of this group:
| Beudantite | PbFe3(AsO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Cloudite | BaFe3+3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Corkite | PbFe3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Gallobeudantite | PbGa3(AsO4)(SO4)(OH)6 | Trig. 3m : R3m |
| Hidalgoite | PbAl3(AsO4)(SO4)(OH)6 | Trig. 3m : R3m |
| Hinsdalite | PbAl3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Oberwolfachite | SrFe3+3(AsO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Svanbergite | SrAl3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
| UM2011-07-POSO:AlBaH | BaAl3(PO4)(SO4)(OH)6 | |
| Unnamed (Fe-analogue of Weilerite and Ba-analogue of Oberwolfachite) | BaFe3(AsO4)(SO4)(OH)6 | |
| Weilerite | BaAl3(AsO4)(SO4)(OH)6 | Hex. |
| Woodhouseite | CaAl3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
Common Associates
Associated Minerals Based on Photo Data:
| 3 photos of Kemmlitzite associated with Quartz | SiO2 |
| 3 photos of Kemmlitzite associated with Svanbergite | SrAl3(PO4)(SO4)(OH)6 |
| 1 photo of Kemmlitzite associated with Tilasite | CaMg(AsO4)F |
| 1 photo of Kemmlitzite associated with Albite | Na(AlSi3O8) |
| 1 photo of Kemmlitzite associated with Arseniopleite | NaCaMnMn2(AsO4)3 |
| 1 photo of Kemmlitzite associated with Olivenite | Cu2(AsO4)(OH) |
Related Minerals - Strunz-mindat Grouping
| 8.BL. | Graulichite-(La) | LaFe3+3(AsO4)2(OH)6 |
| 8.BL. | Oberwolfachite | SrFe3+3(AsO4)(SO4)(OH)6 |
| 8.BL. | Kiryuite | NaMnAl(PO4)F3 |
| 8.BL. | Cloudite | BaFe3+3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Beudantite | PbFe3(AsO4)(SO4)(OH)6 |
| 8.BL.05 | Corkite | PbFe3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Hidalgoite | PbAl3(AsO4)(SO4)(OH)6 |
| 8.BL.05 | Hinsdalite | PbAl3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Svanbergite | SrAl3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Weilerite | BaAl3(AsO4)(SO4)(OH)6 |
| 8.BL.05 | Woodhouseite | CaAl3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Gallobeudantite | PbGa3(AsO4)(SO4)(OH)6 |
| 8.BL.05 | UM2011-07-POSO:AlBaH | BaAl3(PO4)(SO4)(OH)6 |
| 8.BL.10 | Arsenogoyazite | SrAl3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Arsenogorceixite | BaAl3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Arsenocrandallite | CaAl3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Benauite | SrFe3+3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Dussertite | BaFe3+3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Eylettersite | Th0.75Al3(PO4)2(OH)6 |
| 8.BL.10 | Gorceixite | BaAl3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Goyazite | SrAl3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Kintoreite | PbFe3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Philipsbornite | PbAl3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Plumbogummite | PbAl3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Segnitite | PbFe3+3AsO4(AsO3OH)(OH)6 |
| 8.BL.10 va | Viséite | |
| 8.BL.10 | Springcreekite | BaV3+3(PO4)2(OH,H2O)6 |
| 8.BL.10 | Galloplumbogummite | Pb(Ga,Al,Ge)3(PO4)2(OH)6 |
| 8.BL.13 | Arsenoflorencite-(La) | LaAl3(AsO4)2(OH)6 |
| 8.BL.13 | Arsenoflorencite-(Nd) | NdAl3(AsO4)2(OH)6 |
| 8.BL.13 | Arsenoflorencite-(Ce) | CeAl3(AsO4)2(OH)6 |
| 8.BL.13 | Florencite-(Ce) | CeAl3(PO4)2(OH)6 |
| 8.BL.13 | Florencite-(La) | LaAl3(PO4)2(OH)6 |
| 8.BL.13 | Florencite-(Nd) | NdAl3(PO4)2(OH)6 |
| 8.BL.13 | Waylandite | BiAl3(PO4)2(OH)6 |
| 8.BL.13 | Zaïrite | BiFe3+3(PO4)2(OH)6 |
| 8.BL.13 | Arsenowaylandite | BiAl3(AsO4)2(OH)6 |
| 8.BL.13 | Graulichite-(Ce) | CeFe3+3(AsO4)2(OH)6 |
| 8.BL.13 | Florencite-(Sm) | SmAl3(PO4)2(OH)6 |
| 8.BL.13 | Unnamed (As-analogue of Zaïrite) | (Bi,Pb)Fe3+3(AsO4)2(OH)6 |
| 8.BL.15 | Viitaniemiite | Na(Ca,Mn2+)Al(PO4)(F,OH)3 |
| 8.BL.25 | Pattersonite | PbFe3+3(PO4)2(OH)5 · H2O |
Other Information
Notes:
Resistant to mineral acids
Low magnetic susceptibility.
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 Kemmlitzite
mindat.org URL:
https://www.mindat.org/min-2182.html
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External Links:
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References for Kemmlitzite
Reference List:
Scott, Keith M. (1987) Solid solution in, and classification of, gossan-derived members of the alunite-jarosite family, northwest Queensland, Australia. American Mineralogist, 72 (1-2) 178-187
Localities for Kemmlitzite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Czech Republic | |
| Moravec (200) +1 other reference |
| Novák et al. (1998) |
Germany | |
| Aufschluß 76/2 & 88/5 |
| Stefan Wolfsried and Łukasz Kruszewski collections (EDS-analysed by Günter Blass) |
| Hak et al. (1969) +1 other reference |
Greece | |
| SEM-EDS analysed by Chollet Pascal at ... +1 other reference |
Spain | |
| Calvo Rebollar et al. (2022) |
Switzerland | |
| Stalder et al. (1998) |
| Brugger et al. (1997) |
USA | |
| Jones et al. (1999) |
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Falotta, Tinizong, Surses, Albula Region, Grisons, Switzerland