General Sabieite Information Chemical Formula: |
(NH4)Fe+++(SO4)2 |
Composition: |
Molecular Weight = 266.01 gm |
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Iron 20.99 % Fe 30.02 % Fe2O3 |
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Hydrogen 1.52 % H - % Calc as (NH4)2O |
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Sulfur 24.11 % S 60.20 % SO3 |
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Nitrogen 5.27 % N 9.79 % (NH4)2O |
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Oxygen 48.12 % O |
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______ ______ |
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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. |
Name Pronunciation: |
Sabieite |
| | Sabieite Image
Images:
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Sabieite Crystallography 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 Color: |
White. |
Density: |
2.68 - 2.69, Average = 2.68 |
Diaphaneity: |
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 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 Ncalc = 1.54 Optical Data: |
Uniaxial (+), w=1.578, e=1.595, bire=0.0170. |
| Calculated Properties of Sabieite Electron Density: |
Bulk Density (Electron Density)=2.68 gm/cc |
note: Specific Gravity of Sabieite =2.69 gm/cc. Fermion Index: |
Fermion Index = 0.05 |
Boson Index = 0.95 Photoelectric: |
PESabieite = 7.60 barns/electron |
U=PESabieite x rElectron Density= 20.39 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Sabieite is Not Radioactive | Sabieite Classification Dana Class: |
28.03.05.01 (28)Anhydrous Acid and Sulfates |
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(28.03)(A++) XO4 |
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(28.03.05)Dana Group |
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Strunz Class: |
07.AC.20 07 - SULFATES (SELENATES, TELLURATES) |
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07.A - Sulfates (selenates, etc.) without Additional Anions, without H2O |
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07.AC -With medium-sized and large cations |
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| Other Sabieite Information 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 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Sabieite using: Visit our Advertisers for Sabieite : A Bijoux Google Search for SabieiteAdam's Minerals Google Search for Sabieite Cape Minerals Google Search for Sabieite Dakota Matrix Minerals Google Search for Sabieite Excalibur Mineral Corp. Google Search for Sabieite Exceptional Minerals Google Search for Sabieite John Betts Fine Minerals Search for Sabieite McDougall Minerals Google Search for Sabieite Mineral News Website Link Rock and Mineral Shows Google Search for Sabieite Weinrich Minerals, Inc. Google Search for Sabieite Ask about Sabieite here : Print or Cut-and-Paste your Sabieite Specimen Label here :
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