Dmisteinbergite
A valid IMA mineral species
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About Dmisteinbergite
Formula:
Ca(Al2Si2O8)
Colour:
Colourless
Lustre:
Pearly
Hardness:
6
Specific Gravity:
2.73
Crystal System:
Trigonal
Name:
Named in honor of Dmitrii Sergeevich Steinberg (Дмитрий Сергеевич Штейнберг) (08 March 1910 - 10 August 1992), noted Russian petrologist, Institute of Geology and Geochemistry, Yekaterinberg, Russia.
Type Locality:
Polymorph of:
A high-temperature, hexagonal polymorph of anorthite.
The crystal structure is topologically similar to that of minjiangite.
The crystal structure is topologically similar to that of minjiangite.
Unique Identifiers
Mindat ID:
1301
Long-form identifier:
mindat:1:1:1301:3
IMA Classification of Dmisteinbergite
Approved
Approval year:
1989
First published:
1990
Classification of Dmisteinbergite
9.EG.15
9 : SILICATES (Germanates)
E : Phyllosilicates
G : Double nets with 6-membered and larger rings
9 : SILICATES (Germanates)
E : Phyllosilicates
G : Double nets with 6-membered and larger rings
76.1.7.1
76 : TECTOSILICATES Al-Si Framework
1 : Al-Si Framework with Al-Si frameworks
76 : TECTOSILICATES Al-Si Framework
1 : Al-Si Framework with Al-Si frameworks
16.9.5
16 : Silicates Containing Aluminum and other Metals
9 : Aluminosilicates of Ca
16 : Silicates Containing Aluminum and other Metals
9 : Aluminosilicates of Ca
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 |
---|---|---|
Dsb | 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 Dmisteinbergite
Pearly
Transparency:
Transparent
Colour:
Colourless
Streak:
White
Hardness:
6 on Mohs scale
Cleavage:
Perfect
Density:
2.73 g/cm3 (Measured)
Optical Data of Dmisteinbergite
Type:
Uniaxial (+)
RI values:
nω = 1.575 nε = 1.580
Max. Birefringence:
δ = 0.000
Based on recorded range of RI values above.
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 µm 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.
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 µm 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 Dmisteinbergite
Mindat Formula:
Ca(Al2Si2O8)
Element Weights:
Elements listed:
Common Impurities:
Mg,Na,K
Crystallography of Dmisteinbergite
Crystal System:
Trigonal
Class (H-M):
3 2 - Trapezohedral
Space Group:
P3 1 2
Cell Parameters:
a = 5.1123(2) Å, c = 14.7420(7) Å
Ratio:
a:c = 1 : 2.884
Unit Cell V:
333.67 ų (Calculated from Unit Cell)
Z:
2
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0009229 | Dmisteinbergite | Takeuchi Y, Donnay G (1959) The crystal structure of hexagonal CaAl2Si2O8 Acta Crystallographica 12 465-470 | ![]() | 1959 | 0 | 293 | |
0019481 | Dmisteinbergite | Dimitrijevic R, Dondur V, Kremenovic A (1996) Thermally induced phase transformations of Ca-exchanged LTA and FAU zeolite frameworks: Rietveld refinement of the hexagonal CaAl2Si2O8 diphyllosilicate structure Zeolites 16 294-300 | 1996 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
4.5 Å | (60) |
3.83 Å | (60) |
3.73 Å | (100) |
2.85 Å | (70) |
2.57 Å | (80) |
1.847 Å | (70) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 1: Primary nebular phases | 4.567-4.561 |
3 : Solar nebular condensates (CAIs, AOAs, URIs) | >4.565 |
Stage 2: Planetesimal differentiation and alteration | 4.566-4.550 |
6 : Secondary asteroid phases | 4.566-4.560 |
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
50 : Coal and/or oil shale minerals | <0.36 |
Stage 10b: Anthropogenic minerals | <10 Ka |
54 : Coal and other mine fire minerals (see also #51 and #56) |
Geological Setting:
altered gabbro
Type Occurrence of Dmisteinbergite
General Appearance of Type Material:
hexagonal platy crystals
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia. & Natural Science Museum of the Ilmen State Reserve (Miass, Russia)
Geological Setting of Type Material:
fissures in burning coal mine dumps
Associated Minerals at Type Locality:
Synonyms of Dmisteinbergite
Other Language Names for Dmisteinbergite
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
9.EG.05 | Cymrite | BaAl2Si2(O,OH)8 · H2O |
9.EG.10 | Naujakasite | (Na,K)6(Fe2+,Mn2+,Ca)(Al,Fe)4Si8O26 |
9.EG.10 | Manganonaujakasite | Na6(Mn2+,Fe2+)Al4Si8O26 |
9.EG.20 | Kampfite | Ba12(Si11Al5)O31(CO3)8Cl5 |
9.EG.25 | Vertumnite | Ca4Al4Si4O6(OH)24 · 3H2O |
9.EG.25 | Strätlingite | Ca2Al2SiO7 · 8H2O |
9.EG.30 | Eggletonite | (Na,K,Ca)2(Mn,Fe)8(Si,Al)12O29(OH)7 · 11H2O |
9.EG.30 | Ganophyllite | (K,Na,Ca)2Mn8(Si,Al)12(O,OH)32 · 8H2O |
9.EG.30 | Tamaite | (Ca,K,Ba,Na)3-4Mn24(Si,Al)40(O,OH)112 · 21H2O |
9.EG.35 | Zussmanite | K(Fe,Mg,Mn)13(Si,Al)18O42(OH)14 |
9.EG.35 | Coombsite | KMn2+13(Si,Al)18O42(OH)14 |
9.EG.40 | Chalcodite | K(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27 |
9.EG.40 | Parsettensite | (K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2O |
9.EG.40 | Franklinphilite | (K,Na)4(Mn2+,Mg,Zn)48(Si,Al)72(O,OH)216 · 6H2O |
9.EG.40 | Lennilenapeite | K6-7(Mg,Mn,Fe,Zn)48(Si,Al)72(O,OH)216 · 16H2O |
9.EG.40 | Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
9.EG.45 | Latiumite | (Ca,K)4(Si,Al)5O11(SO4,CO3) |
9.EG.45 | Levantite | KCa3Al2(SiO4)(Si2O7)(PO4) |
9.EG.45 | Tuscanite | KCa6(Si,Al)10O22(SO4,CO3)2(OH) · H2O |
9.EG.50 | Jagoite | Pb18Fe3+4[Si4(Si,Fe3+)6][Pb4Si16(Si,Fe)4]O82Cl6 |
9.EG.50 | Friisite | Pb8Al3Si8O27Cl3 |
9.EG.55 | Wickenburgite | CaPb3Al2Si10O24(OH)6 |
9.EG.60 | Hyttsjöite | Pb18Ba2Ca5Mn2+2Fe3+2Si30O90Cl · 6H2O |
9.EG.65 | Armbrusterite | K5Na7Mn15[(Si9O22)4](OH)10 · 4H2O |
9.EG.70 | Roymillerite | Pb24Mg9(Si10O28)(CO3)10(BO3)(SiO4)(OH)13O5 |
9.EG.70 | Britvinite | [Pb7(OH)3F(BO3)2(CO3)][Mg4.5(OH)3(Si5O14)] |
9.EG.75 | Kayupovaite | Na2Mn10[(Si14Al2)O38(OH)8] · 7H2O |
9.EG.75 | UM1989-30-SiO:AlBaCaFeHKMgMn | (Ba,Ca)(Mn,Fe,Mg)22(Si,Al)32O76(OH)16 · 12H2O |
9.EG.75 | Bannisterite | (Ca,K,Na)(Mn2+,Fe2+)10(Si,Al)16O38(OH)8 · nH2O |
Other Information
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 Dmisteinbergite
mindat.org URL:
https://www.mindat.org/min-1301.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Dmisteinbergite
Reference List:
Donnay, G. H. (1952) Hexagonal CaAl2Si2O8. Acta Crystallographica, 5 (1) 153 doi:10.1107/s0365110x52000423
Takeuchi, Y., Donnay, G. (1959) The crystal structure of hexagonal CaAl2Si2O8. Acta Crystallographica, 12 (6) 465-470 doi:10.1107/s0365110x59001396
Abe, Toshiya, sukamoto, Katsuo, Sunagawa, Ichiro (1991) Nucleation, growth and stability of CaAl2Si2O8 polymorphs. Physics and Chemistry of Minerals, 17 (6) doi:10.1007/bf00202227
ABE, Toshiya, SUNAGAWA, Ichiro (1995) Hexagonal CaAl2Si2O8 in a high temperature solution; metastable crystallization and transformation to anorthite. Mineralogical Journal, 17 (6) 257-281 doi:10.2465/minerj.17.257
Nestola, F., Mittempergher, S., Di Toro, G., Zorzi, F., Pedron, D. (2010) Evidence of dmisteinbergite (hexagonal form of CaAl2Si2O8) in pseudotachylyte: A tool to constrain the thermal history of a seismic event. American Mineralogist, 95 (2) 405-409 doi:10.2138/am.2010.3393
Ma, C., Krot, A. N., Bizzarro, M. (2013) Discovery of dmisteinbergite (hexagonal CaAl2Si2O8) in the Allende meteorite: A new member of refractory silicates formed in the solar nebula. American Mineralogist, 98 (7) 1368-1371 doi:10.2138/am.2013.4496
Fintor, Krisztian, Park, Changkun, Nagy, Szabolcs, Pál‐Molnár, Elemér, Krot, Alexander N. (2014) Hydrothermal origin of hexagonal CaAl2Si2O8 (dmisteinbergite) in a compact type A CAI from the Northwest Africa 2086 CV 3 chondrite. Meteoritics & Planetary Science, 49 (5). 812-823 doi:10.1111/maps.12294
Di Pierro, Simonpietro, Gnos, Edwin (2016) Ca-Al-silicate inclusions in natural moissanite (SiC) American Mineralogist, 101 (1) 71-81 doi:10.2138/am-2016-5357
Localities for Dmisteinbergite
Locality List




All localities listed without proper references should be considered as questionable.
China | |
| Borriello et al. (2025) |
Czech Republic | |
| Wannhoff et al. (2022) |
Germany | |
| Wannhoff et al. (2022) |
Israel | |
| www.minsocam.org (2021) +3 other references |
Japan | |
| Alfredo Petrov specimen confirmed by ... +1 other reference |
Mexico | |
| Ma (2013) |
Northwest Africa Meteorites | |
Fintor et al. (2014) | |
Russia (TL) | |
| Chesnokov et al. (1990) +2 other references |
Ukraine | |
| SEMONOVA (2025) |
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Rakefet magmatic complex, Mount Carmel, Haifa District, Israel