Meixnerite Mineral Data + 
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- 6.4.6.1 Meixnerite Mg6Al2(OH)18·4(H2O) R 3m 3 2/m
- 6.4.6.2 Fougerite! (Fe,Mg)6Fe2(OH)18·4(H2O) R 3m 3 2/m
- IV/F.05-10 Meixnerite Mg6Al2(OH)18·4(H2O) R 3m 3 2/m
- IV/F.05-15 Woodallite! Mg6Cr2(OH)16Cl2·4(H2O) R 3m 3 2/m
- IV/F.05-20 Iowaite Mg4Fe(OH)8OCl·2-4(H2O) R 3m 3 2/m
- IV/F.05-30 Muskoxite Mg7Fe4O13·10(H2O) Unk (pseudo HEX-R) Trig
General Meixnerite Information |
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 Chemical Formula: |
Mg6Al2(OH)18·4(H2O) | ||
| Composition: |
Molecular Weight = 577.99 gm | ||
| Magnesium 25.23 % Mg 41.84 % MgO | |||
| Aluminum 9.34 % Al 17.64 % Al2O3 | |||
| Hydrogen 4.53 % H 40.52 % H2O | |||
| Oxygen 60.90 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Mg6Al2(OH)18·4(H2O) | ||
| Environment: |
Secondary mineral with talc in cracks of a pyrope-serpentine rock. | ||
| IMA Status: |
Approved IMA 1975 | ||
| Locality: |
Ybba Persenberg, Austria. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Heinrich Herman Meixner (1908-1981), Austrian mineralogist. | ||
Meixnerite Image | |||
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Images:
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Meixnerite Crystallography |
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| Axial Ratios: |
a:c = 1:7.52716 | ||
| Cell Dimensions: |
a = 3.0463, c = 22.93, Z = 0.375; V = 184.28 Den(Calc)= 1.95 | ||
| Crystal System: |
Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m | ||
Physical Properties of Meixnerite |
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| Cleavage: |
[0001] Perfect | ||
| Color: |
Colorless. | ||
| Diaphaniety: |
Transparent | ||
| Hardness: |
2 - Gypsum | ||
| Luster: |
Pearly | ||
| Streak: |
white | ||
Optical Properties of Meixnerite |
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| Gladstone-Dale: |
CI calc= -0.011 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2608,KC= 0.258 |
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| Optical Data: |
Uniaxial (-), e=1.5, w=1.517, bire=0.0170. | ||
Calculated Properties of Meixnerite |
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| Electron Density: |
relectron=2.02 gm/cc |
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| Fermion Index |
Fermion Index = 0.02552 Boson Index = 0.97448 |
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| Photoelectric: |
PEMeixnerite = 0.94 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Meixnerite is Not Radioactive |
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Meixnerite Classification |
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| Dana Class: |
6.4.6.1 (6)Hydroxides and Oxides Containing Hydroxyl | ||
| (6.4)containing multiple cations | |||
| (6.4.6)Dana Group | |||
| Strunz Class: |
IV/F.05-10 IV - Oxides | ||
| IV/F - Hydroxides and oxidic hydrates, water-bearing oxides with layered structure | |||
| IV/F.05 - Meixnerite - Muskoxite series | |||
Other Meixnerite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Meixnerite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris Search for Meixnerite using: Visit our Advertisers for Meixnerite : Translate Meixnerite Mineral Data : Ask about Meixnerite here : Print or Cut-and-Paste your Meixnerite Specimen Label here :
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