Dmisteinbergite Mineral Data + 
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- 76.1.7.1 Dmisteinbergite CaAl2Si2O8 P 6/mmm 6/m 2/m 2/m
- VIII/J.07-10 Anorthoclase (Na,K)AlSi3O8 C1 1
- VIII/J.07-20 Albite NaAlSi3O8 C1 1
- VIII/J.07-30 Oligoclase (Na,Ca)(Si,Al)4O8 C1 1
- VIII/J.07-40 Andesine* (Na,Ca)(Si,Al)4O8 C1 1
- VIII/J.07-50 Labradorite* (Ca,Na)(Si,Al)4O8 C1 1
- VIII/J.07-60 Bytownite* (Ca,Na)(Si,Al)4O8 C1 1
- VIII/J.07-70 Anorthite CaAl2Si2O8 P1,I1 1
- VIII/J.07-75 Dmisteinbergite CaAl2Si2O8 P 6/mmm 6/m 2/m 2/m
- VIII/J.07-80 Svyatoslavite CaAl2Si2O8 P 21 2
- VIII/J.07-90 Stronalsite SrNa2Al4Si4O16 I bam,Iba2 Ortho
- VIII/J.07-100 Banalsite BaNa2Al4Si4O16 I bam 2/m 2/m 2/m
- VIII/J.07-110 Filatovite! K[(Al,Zn)2(As,Si)2O8] I2/c 2/m
General Dmisteinbergite Information |
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 Chemical Formula: |
CaAl2Si2O8 | ||
| Composition: |
Molecular Weight = 278.21 gm | ||
| Calcium 14.41 % Ca 20.16 % CaO | |||
| Aluminum 19.40 % Al 36.65 % Al2O3 | |||
| Silicon 20.19 % Si 43.19 % SiO2 | |||
| Oxygen 46.01 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
CaAl2Si2O8 | ||
| IMA Status: |
Approved IMA 1990 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 26486 | ||
| IMA1989-010 | |||
| PDF 31-248 | |||
Dmisteinbergite Image | |||
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Images:
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Dmisteinbergite Crystallography |
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| Axial Ratios: |
a:c = 1:2.88578 | ||
| Cell Dimensions: |
a = 5.122, c = 14.781, Z = 2; V = 335.83 Den(Calc)= 2.75 | ||
| Crystal System: |
Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 6/mmm | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.73(1), 2.57(0.8), 2.85(0.7), | ||
Physical Properties of Dmisteinbergite |
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| Cleavage: |
[???] Perfect | ||
| Color: |
Colorless. | ||
| Diaphaniety: |
Transparent | ||
| Hardness: |
6 - Orthoclase | ||
| Streak: |
white | ||
Optical Properties of Dmisteinbergite |
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| Gladstone-Dale: |
CI calc= -0.009 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.21,KC= 0.208 |
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| Optical Data: |
Uniaxial (+), w=1.575, e=1.58, bire=0.0050. | ||
Calculated Properties of Dmisteinbergite |
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| Electron Density: |
relectron=2.73 gm/cc |
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| Fermion Index |
Fermion Index = 0.00984 Boson Index = 0.99016 |
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| Photoelectric: |
PEDmisteinbergite = 3.12 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Dmisteinbergite is Not Radioactive |
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Dmisteinbergite Classification |
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| Dana Class: |
76.1.7.1 (76)Tectosilicate Al-Si Framework | ||
| (76.1)with Al-Si frameworks | |||
| (76.1.7)Dana Group | |||
| Strunz Class: |
VIII/J.07-75 VIII - Silicates | ||
| VIII/J - Tectosilicates (network) without anions unfamiliar to the tetraheders | |||
| VIII/J.07 - Feldspar group, Anorthoclase - Anorthite - Banalcite series | |||
Other Dmisteinbergite Information |
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| References: |
PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(37th List of New Min.,Min. Mag.,19) | ||
| See Also: |
Links to other databases for Dmisteinbergite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 - Mineral and Gemstone Kingdom 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 -École des Mines de Paris Search for Dmisteinbergite using: Visit our Advertisers for Dmisteinbergite : Translate Dmisteinbergite Mineral Data : Ask about Dmisteinbergite here : Print or Cut-and-Paste your Dmisteinbergite Specimen Label here :
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