Sabieite Mineral Data + 
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- 28.3.5.1 Sabieite (NH4)Fe(SO4)2 P 321 3 2
- 28.3.5.2 Godovikovite (NH4)(Al,Fe)(SO4)2 P 321 3 2
- VI/A.05-10 Godovikovite (NH4)(Al,Fe)(SO4)2 P 321 3 2
- VI/A.05-20 Sabieite (NH4)Fe(SO4)2 P 321 3 2
General Sabieite Information |
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 Chemical Formula: |
(NH4)Fe+++(SO4)2 | ||
| Composition: |
Molecular Weight = 266.01 gm | ||
| Iron 20.99 % Fe 30.02 % Fe2O3 | |||
| Hydrogen 1.52 % H - % Calc as (NH4)2O | |||
| Sulfur 24.11 % S 60.20 % SO3 | |||
| Nitrogen 5.27 % N 9.79 % (NH4)2O | |||
| Oxygen 48.12 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
(NH4)Fe3+(SO4)2 | ||
| Environment: |
Derived from the dehydration of lonecreekite. | ||
| IMA Status: |
Approved IMA 1983 | ||
| Locality: |
Lone Creek cavern, near Sabie, Transvaal, South Africa. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for the locality. | ||
Sabieite Image | |||
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Images:
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Sabieite Crystallography |
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| Axial Ratios: |
a:c = 1:1.69423 | ||
| Cell Dimensions: |
a = 4.822, c = 8.1696, Z = 1; V = 164.51 Den(Calc)= 2.68 | ||
| Crystal System: |
Trigonal - TrapezohedralH-M Symbol (3 2) Space Group: P 321 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 8.19(1), 2.409(0.3), 3.72(0.2), | ||
Physical Properties of Sabieite |
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| Color: |
White. | ||
| Density: |
2.68 - 2.69, Average = 2.68 | ||
| Diaphaniety: |
Transparent | ||
| Habit: |
Massive - Granular - Common texture observed in granite and other igneous rock. | ||
| Habit: |
Powdery - Forms a loose, poorly-coherent pulverulent mass. | ||
| Hardness: |
2 - Gypsum | ||
| Luster: |
Earthy (Dull) | ||
| Streak: |
white | ||
Optical Properties of Sabieite |
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| Gladstone-Dale: |
CI meas= -0.086 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.088 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2188,KPDmeas= 0.2184,KC= 0.2011 |
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| Optical Data: |
Uniaxial (+), w=1.578, e=1.595, bire=0.0170. | ||
Calculated Properties of Sabieite |
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| Electron Density: |
relectron=2.68 gm/cc |
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| Fermion Index |
Fermion Index = 0.05895 Boson Index = 0.94105 |
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| Photoelectric: |
PESabieite = 7.60 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Sabieite is Not Radioactive |
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Sabieite Classification |
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| Dana Class: |
28.3.5.1 (28)Anhydrous Acid and Sulfates | ||
| (28.3)(A++) XO4 | |||
| (28.3.5)Dana Group | |||
| Strunz Class: |
VI/A.05-20 VI - Sulfates,Chromates,Molybdates and Tungstates | ||
| VI/A - Waterfree sulfates [SO4]2- without unfamiliar anions. cations of medium and very big size | |||
| VI/A.05 - Godovikovite - Sabieite series | |||
Other Sabieite 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 Sabieite : 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 Sabieite using: Visit our Advertisers for Sabieite : Translate Sabieite Mineral Data : Ask about Sabieite here : Print or Cut-and-Paste your Sabieite Specimen Label here :
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