Sabieite
A valid IMA mineral species
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About Sabieite
Sabie, South Africa
Formula:
(NH4)Fe3+(SO4)2
Colour:
White
Lustre:
Earthy
Hardness:
2
Specific Gravity:
2.36 (Calculated)
Crystal System:
Trigonal
Name:
Named after the twon of Sabie, South Africa, closest to the discovery locality.
Type Locality:
Dimorph of:
Isostructural with:
The ferric Fe analogue of godovikovite. Chemically related to pyracmonite and ferroefremovite. Slightly hydroscopic.
The following different polytypes are known: 1T, 2H and 3R (Kampf et al., 2014).
The following different polytypes are known: 1T, 2H and 3R (Kampf et al., 2014).
Unique Identifiers
Mindat ID:
3494
Long-form identifier:
mindat:1:1:3494:0
IMA Classification of Sabieite
Approved
IMA Formula:
N3-H4Fe3+(S6+O4)2
Approval year:
1982
First published:
1984
Classification of Sabieite
7.AC.20
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
A : Sulfates (selenates, etc.) without additional anions, without H2O
C : With medium-sized and large cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
A : Sulfates (selenates, etc.) without additional anions, without H2O
C : With medium-sized and large cations
28.3.5.1
28 : ANHYDROUS ACID AND NORMAL SULFATES
3 : AXO4
28 : ANHYDROUS ACID AND NORMAL SULFATES
3 : AXO4
25.11.13
25 : Sulphates
11 : Sulphates of Fe and other metals
25 : Sulphates
11 : Sulphates of Fe and other metals
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 for Standard |
|---|---|---|
| Sbi | 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 Sabieite
Earthy
Transparency:
Translucent
Colour:
White
Streak:
White
Hardness:
2 on Mohs scale
Density:
2.36 g/cm3 (Calculated)
Optical Data of Sabieite
Type:
Uniaxial (+)
RI values:
nω = 1.578 nε = 1.595
Max. Birefringence:
δ = 0.017
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 Sabieite
Mindat Formula:
(NH4)Fe3+(SO4)2
Element Weights:
Crystallography of Sabieite
Polytype:
Formula:
Crystal System:
Class (H-M)
Space Group:
Space Group Setting:
Cell Parameters:
Ratio:
Unit Cell Volume (calc):
Z:
Comment:
| Sabieite-1T | Sabieite-2H | Sabieite-3R |
|---|---|---|
| (NH4)Fe3+(SO4)2 | (NH4)Fe3+(SO4)2 | (NH4)Fe3+(SO4)2 |
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.19 Å | (100) |
| 2.409 Å | (30) |
| 3.72 Å | (20) |
| 1.392 Å | (20) |
| 1.556 Å | (15) |
| 2.910 Å | (10) |
| 2.718 Å | (10) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47b : [Sulfates and sulfites] |
Geological Setting:
Dehydration product of lonecreekite.
Type Occurrence of Sabieite
Place of Conservation of Type Material:
South African Geological Survey Museum, Pretoria, South Africa.
Geological Setting of Type Material:
Formed by the oxidation of pyrite, which interacts with ammonia produced from the decay of organic matter. Likely to form if the pH is below one.
Synonyms of Sabieite
Other Language Names for Sabieite
Common Associates
Associations Based on Photo Data:
| 2 photos of Sabieite associated with Tschermigite | (NH4)Al(SO4)2 · 12H2O |
| 1 photo of Sabieite associated with Ammoniomagnesiovoltaite | (NH4)2Mg2+5Fe3+3Al(SO4)12 · 18H2O |
| 1 photo of Sabieite associated with Godovikovite | (NH4)Al(SO4)2 |
| 1 photo of Sabieite associated with Lonecreekite | (NH4)Fe3+(SO4)2 · 12H2O |
| 1 photo of Sabieite associated with Anatase | TiO2 |
| 1 photo of Sabieite associated with Quartz | SiO2 |
| 1 photo of Sabieite associated with Boussingaultite | (NH4)2Mg(SO4)2 · 6H2O |
| 1 photo of Sabieite associated with Efremovite | (NH4)2Mg2(SO4)3 |
| 1 photo of Sabieite associated with Chabazite-K | (K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
Related Minerals - Strunz-mindat Grouping
| 7.AC. | Aluminopyracmonite | (NH4)3Al(SO4)3 |
| 7.AC. | Amgaite | Tl+32Te6+O6 |
| 7.AC.05 | Vanthoffite | Na6Mg(SO4)4 |
| 7.AC.08 | Pyracmonite | (NH4)3Fe(SO4)3 |
| 7.AC.10 | Langbeinite | K2Mg2(SO4)3 |
| 7.AC.10 | Efremovite | (NH4)2Mg2(SO4)3 |
| 7.AC.10 | Ferroefremovite | (NH4)2Fe2+2(SO4)3 |
| 7.AC.10 | Manganolangbeinite | K2Mn2(SO4)3 |
| 7.AC.15 | Yavapaiite | KFe3+(S6+O4)2 |
| 7.AC.15 | Eldfellite | NaFe3+(SO4)2 |
| 7.AC.20 | Godovikovite | (NH4)Al(SO4)2 |
| 7.AC.20 | Steklite | KAl(SO4)2 |
| 7.AC.35 | Aphthitalite | K3Na(SO4)2 |
| 7.AC.35 | Belomarinaite | KNa(SO4) |
| 7.AC.35 | Natroaphthitalite | KNa3(SO4)2 |
| 7.AC.35 | Möhnite | (NH4)K2Na(SO4)2 |
| 7.AC.40 | Itelmenite | Na4Mg3Cu3(SO4)8 |
| 7.AC.45 | Saranchinaite | Na2Cu(SO4)2 |
| 7.AC.50 | Majzlanite | K2Na(ZnNa)Ca(SO4)4 |
| 7.AC.60 | Philoxenite | (K,Na,Pb)4(Na,Ca)2(Mg,Cu)3(Fe3+0.5Al0.5)(SO4)8 |
| 7.AC.75 | Petrovite | Na12Cu2(SO4)8 |
Other Information
Notes:
Slowly soluble in water.
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 Sabieite
mindat.org URL:
https://www.mindat.org/min-3494.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Sabieite
Reference List:
Dunn, Pete J., Chao, George Y., Fitzpatrick, Joan J., Langley, Richard H., Fleischer, Michael, Zilczer, Janet A. (1986) New Mineral Names. American Mineralogist, 71 (1-2). 227-232 p.229
Kampf, A. R., Richards, R. P., Nash, B. P. (2014) The 2H and 3R polytypes of sabieite, NH4Fe3+(SO4)2, from a natural fire in an oil-bearing shale near Milan, Ohio. American Mineralogist, 99 (7) 1500-1506 doi:10.2138/am.2014.4884
Localities for Sabieite
Showing 16 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Czech Republic | |
| Zacek et al. (2019) |
| Matýsek et al. (2022) |
| Košek (2018) +1 other reference | |
Germany | |
| Blaß et al. (1993) +1 other reference |
| Košek (2018) | |
| Witzke (2012) |
| Witzke et al. (1998) |
Hungary | |
| GEODA 2007/1 |
| Szakáll et al. (2008) |
Poland | |
| Parafiniuk et al. (2009) |
| Kruszewski et al. (2020) |
| doi.org (n.d.) +1 other reference |
South Africa (TL) | |
| Martini (1983) |
USA | |
| [Sabieite-2H, Sabieite-3R] Richards (2014) +1 other reference |
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Carola Mine, Döhlen, Freital, Sächsische Schweiz-Osterzgebirge, Saxony, Germany