Siderotil
A valid IMA mineral species - grandfathered
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About Siderotil
Formula:
FeSO4 · 5H2O
Colour:
Yellowish, white, light green; colourless in transmitted light.
Lustre:
Silky
Hardness:
2½
Crystal System:
Triclinic
Member of:
Name:
From Greek "sideros", iron, plus "tilos", fiber, alluding to its composition and habit.
Type Locality:
Unique Identifiers
Mindat ID:
3643
Long-form identifier:
mindat:1:1:3643:2
GUID
(UUID V4):
(UUID V4):
69f94441-aa8c-44e1-9fdd-c54cd111cb49
IMA Classification of Siderotil
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Fe(SO4) · 5H2O
Classification of Siderotil
7.CB.20
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations
29.6.7.2
29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
25.10.3
25 : Sulphates
10 : Sulphates of Fe alone
25 : Sulphates
10 : Sulphates of Fe alone
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 |
|---|---|---|
| Sdt | 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 Siderotil
Silky
Colour:
Yellowish, white, light green; colourless in transmitted light.
Streak:
White
Hardness:
2½ on Mohs scale
Optical Data of Siderotil
Type:
Biaxial (-)
RI values:
nα = 1.513 - 1.515 nβ = 1.525 - 1.526 nγ = 1.534 - 1.536
2V:
Measured: 50° , Calculated: 80° to 86°
Max Birefringence:
δ = 0.021
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
strong
Chemistry of Siderotil
Mindat Formula:
FeSO4 · 5H2O
Elements listed:
Crystallography of Siderotil
Crystal System:
Triclinic
Cell Parameters:
a = 6.292(5) Å, b = 10.632(8) Å, c = 6.072(5) Å
α = 82.62(1)°, β = 110.01(1)°, γ = 105.18(1)°
α = 82.62(1)°, β = 110.01(1)°, γ = 105.18(1)°
Ratio:
a:b:c = 0.592 : 1 : 0.571
Unit Cell V:
368.02 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Fibrous crusts; groups of divergent needle-like crystals.
Comment:
Space group P1 or P-1. Non-standard setting.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0005844 | Siderotil | Peterson R C, Roeder P L, Zhang Y (2003) The atomic structure of siderotil, (Fe,Cu)SO4.5H2O The Canadian Mineralogist 41 671-676 |  | 2003 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.73 Å | (5) |
| 5.57 Å | (6) |
| 4.89 Å | (10) |
| 3.73 Å | (8) |
| 3.21 Å | (4) |
| 2.92 Å | (4) |
| 2.68 Å | (4) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 45a : [Sulfates, arsenates, selenates, antimonates] | |
| 45b : [Other oxidized fumarolic minerals] | |
| 47a : [Near-surface hydration of prior minerals] | |
| 47b : [Sulfates and sulfites] | |
| Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
| 50 : Coal and/or oil shale minerals | <0.36 |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 54 : Coal and other mine fire minerals (see also #51 and #56) | |
| 55 : Anthropogenic mine minerals |
Type Occurrence of Siderotil
Associated Minerals at Type Locality:
Other Language Names for Siderotil
Relationship of Siderotil to other Species
Member of:
Other Members of this group:
| Belogubite | CuZn(SO4)2 · 10H2O | Tric. 1 : P1 |
| Chalcanthite | CuSO4 · 5H2O | Tric. 1 : P1 |
| Jôkokuite | MnSO4 · 5H2O | Tric. 1 : P1 |
| Pentahydrite | MgSO4 · 5H2O | Tric. 1 : P1 |
Common Associates
Associated Minerals Based on Photo Data:
| 2 photos of Siderotil associated with Szomolnokite | FeSO4 · H2O |
| 1 photo of Siderotil associated with Gypsum | CaSO4 · 2H2O |
| 1 photo of Siderotil associated with Linarite | PbCu(SO4)(OH)2 |
| 1 photo of Siderotil associated with Antlerite | Cu3(SO4)(OH)4 |
| 1 photo of Siderotil associated with Halotrichite | FeAl2(SO4)4 · 22H2O |
| 1 photo of Siderotil associated with Chalcanthite | CuSO4 · 5H2O |
Related Minerals - Strunz-mindat Grouping
| 7.CB. | Sarvodaite | Al2(SO4)3 · 5H2O |
| 7.CB.02 | Voudourisite | CdSO4 · H2O |
| 7.CB.05 | Dwornikite | Ni(SO4) · H2O |
| 7.CB.05 | Gunningite | ZnSO4 · H2O |
| 7.CB.05 | Kieserite | MgSO4 · H2O |
| 7.CB.05 | Poitevinite | (Cu,Fe)SO4 · H2O |
| 7.CB.05 | Szmikite | MnSO4 · H2O |
| 7.CB.05 | Szomolnokite | FeSO4 · H2O |
| 7.CB.05 | Cobaltkieserite | CoSO4 · H2O |
| 7.CB.07 | Sanderite | MgSO4 · 2H2O |
| 7.CB.10 | Bonattite | CuSO4 · 3H2O |
| 7.CB.12 | Belogubite | CuZn(SO4)2 · 10H2O |
| 7.CB.15 | Aplowite | (Co,Mn,Ni)SO4 · 4H2O |
| 7.CB.15 | Boyleite | (Zn,Mg)SO4 · 4H2O |
| 7.CB.15 | Ilesite | (Mn,Zn,Fe)SO4 · 4H2O |
| 7.CB.15 | Rozenite | FeSO4 · 4H2O |
| 7.CB.15 | Starkeyite | MgSO4 · 4H2O |
| 7.CB.15 | Drobecite | CdSO4 · 4H2O |
| 7.CB.15 | Cranswickite | MgSO4 · 4H2O |
| 7.CB.20 | Chalcanthite | CuSO4 · 5H2O |
| 7.CB.20 | Jôkokuite | MnSO4 · 5H2O |
| 7.CB.20 | Pentahydrite | MgSO4 · 5H2O |
| 7.CB.25 | Bianchite | Zn(SO4) · 6H2O |
| 7.CB.25 | Chvaleticeite | Mn(SO4) · 6H2O |
| 7.CB.25 | Ferrohexahydrite | FeSO4 · 6H2O |
| 7.CB.25 | Hexahydrite | MgSO4 · 6H2O |
| 7.CB.25 | Moorhouseite | Co(SO4) · 6H2O |
| 7.CB.25 | Nickelhexahydrite | Ni(SO4) · 6H2O |
| 7.CB.30 | Retgersite | NiSO4 · 6H2O |
| 7.CB.35 | Bieberite | CoSO4 · 7H2O |
| 7.CB.35 | Boothite | CuSO4 · 7H2O |
| 7.CB.35 | Mallardite | MnSO4 · 7H2O |
| 7.CB.35 | Melanterite | Fe2+(H2O)6SO4 · H2O |
| 7.CB.35 | Zincmelanterite | (Zn,Cu,Fe)SO4 · 7H2O |
| 7.CB.35 | Alpersite | (Mg,Cu)(SO4) · 7H2O |
| 7.CB.40 | Epsomite | MgSO4 · 7H2O |
| 7.CB.40 | Goslarite | ZnSO4 · 7H2O |
| 7.CB.40 | Morenosite | NiSO4 · 7H2O |
| 7.CB.45 | Alunogen | Al2(SO4)3 · 17H2O |
| 7.CB.45 | Meta-alunogen | Al2(SO4)3 · 12H2O |
| 7.CB.50 | Aluminocoquimbite | Al2Fe2(SO4)6(H2O)12 · 6H2O |
| 7.CB.50 | Lazaridisite | 3CdSO4 · 8H2O |
| 7.CB.52 | Pararaisaite | CuMg[Te6+O4(OH)2] · 6H2O |
| 7.CB.55 | Coquimbite | AlFe3(SO4)6(H2O)12 · 6H2O |
| 7.CB.55 | Paracoquimbite | Fe4(SO4)6(H2O)12 · 6H2O |
| 7.CB.55 | Rhomboclase | (H5O2)Fe3+(SO4)2 · 2H2O |
| 7.CB.55 | Raisaite | CuMg[Te6+O4(OH)2] · 6H2O |
| 7.CB.57 | Caichengyunite | Fe2+3Al2(SO4)6 · 30H2O |
| 7.CB.60 | Kornelite | Fe2(SO4)3 · 7H2O |
| 7.CB.65 | Quenstedtite | Fe2(SO4)3 · 11H2O |
| 7.CB.70 | Lausenite | Fe2(SO4)3 · 5H2O |
| 7.CB.75 | Lishizhenite | ZnFe2(SO4)4 · 14H2O |
| 7.CB.75 | Römerite | Fe2+Fe3+2(SO4)4 · 14H2O |
| 7.CB.80 | Ransomite | CuFe2(SO4)4 · 6H2O |
| 7.CB.85 | Apjohnite | Mn2+Al2(SO4)4 · 22H2O |
| 7.CB.85 | Bílinite | Fe2+Fe3+2(SO4)4 · 22H2O |
| 7.CB.85 | Dietrichite | (Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2O |
| 7.CB.85 | Halotrichite | FeAl2(SO4)4 · 22H2O |
| 7.CB.85 | Pickeringite | MgAl2(SO4)4 · 22H2O |
| 7.CB.85 | Redingtonite | (Fe2+,Mg,Ni)(Cr,Al)2(SO4)4 · 22H2O |
| 7.CB.85 | Wupatkiite | (Co,Mg,Ni)Al2(SO4)4 · 22H2O |
| 7.CB.90 | Meridianiite | MgSO4 · 11H2O |
Other Information
Notes:
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 Siderotil
mindat.org URL:
https://www.mindat.org/min-3643.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 Siderotil
Reference List:
Larsen, Esper S. (1921) The microscopic determination of the nonopaque minerals. Bulletin Vol. 679. US Geological Survey doi:10.3133/b679 p.134
Localities for Siderotil
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.
Andorra | |
| Valenti Turu and Michels (1992) |
Argentina | |
| Milka K. de Brodtkorb (2002) |
Australia | |
| Thienenkamp (2004) |
Austria | |
| Niedermayr et al. (1995) |
| Postl (1977) |
| Postl (1977) | |
| Schnorrer et al. (2005) |
| Schnorrer+Poeverlein (2005) | |
Bolivia | |
| Smith et al. (2001) |
Bulgaria | |
| Atanassova et al. (2009) |
Canada | |
| Sabina (1967) |
| Ann P.Sabina (1991) |
| Sabina (2000) |
| Kirkland Lake - Rouyn-Noranda - Val d'Or +1 other reference |
| Kirkland Lake - Rouyn-Noranda - Val d'Or +1 other reference |
| Kirkland Lake - Rouyn-Noranda - Val d'Or +1 other reference | |
| Estrie and Gaspesie +2 other references |
China | |
| National Geological Archives of China ... |
| Antong Liu and Jingbo Li (2007) |
Costa Rica | |
| Ulloa et al. (2018) |
Czech Republic | |
| Matýsek D. |
France | |
| www.mine-capgaronne.fr (2003) |
Germany | |
| Walenta (1992) |
| Mangold et al. (11/21) |
| Mangold et al. (10/21) +1 other reference | |
| |
| Schnorrer-Köhler (1991) +1 other reference |
| Der Aufschluss 2000 (2) |
| Wittern (2001) +1 other reference |
| Henrich (2009) |
| Lapis 1988 (1) |
| Weiß (1990) |
| Schnorrer et al. (1993) |
| Gröbner et al. (2011) |
| T. Witzke & F. Rüger: Lapis 1998 (7/8) |
Greece | |
| |
| |
| Branko Rieck collection | |
Hungary | |
| Szakáll: Minerals of Rudabánya |
| Szakáll: Minerals of Rudabánya +1 other reference | |
| ACTA MIN. PETR. Suppl. Tomus XXXVIII. +1 other reference |
| Szakáll & Jánosi. Minerals of Hungary |
| Sánoor Szakáll et al. (1997) |
| Sánoor Szakáll et al. (1997) | |
Italy | |
| Carbone et al. (2002) |
| De Michele (1974) |
| AA. VV. |
| Bazzoni C. et al. |
| Conticini F. et al. (1980) +2 other references |
| Conticini F. et al. (1980) +2 other references | |
Japan | |
| Nambu et al (1979) |
Norway | |
| Ellingsen (1989) +1 other reference |
Peru | |
| Diaby et al. (2006) |
Poland | |
| Cabała et al. (2008) |
Portugal | |
| Bobos +2 other references |
| |
Romania | |
| Edited by Szakáll-Kristály (2010) |
| Ed.:Szakáll S.-Kristály ... |
Russia | |
| Bortnikova et al. (2017) |
| Zhdanov Yu.Ya. (1998) |
| Eremin et al. (2014) |
Slovenia (TL) | |
| Palache et al. (1951) +1 other reference |
Spain | |
| Calvo (1999) |
| Mata i Perelló (1990) |
Switzerland | |
| Stalder et al. (1998) |
| Perroud et al. (1987) +2 other references |
| Ansermet (2012) |
Ukraine | |
| Alexander I. Tischenko (1996) |
| Geologiya SSSR. Poleznye iskopaemye (The geology of USSR. Commercial mineral) |
| Zanin et al. (2009) |
USA | |
| Graeme (1981) +2 other references |
| https://www.mindat.org/photo-147491.html | |
| Wenrich (1988) +1 other reference | |
| Van Nostrand Reinholt Press: 270 +5 other references |
| Majzlan et al. (2011) |
| Eckel et al. (1997) |
| Wayne C. Shanks et al. (2012) | |
| Erd et al. (1960) |
| Cerato |
| USGS Bull 997 |
| MinRec 16 (1) |
| Northrop et al. (1996) |
| Bernard et al. (2004) |
| Bullock (1981) |
| Bullock (1981) |
| USGS: Geological Survey Circular 217 +4 other references |
| Bullock (1981) |
| Bullock (1981) |
| Hammarstrom et al. (2000) |
| Dietrich (1990) |
| Dietrich (1990) |
| Dietrich (1990) |
| Dietrich (1990) | |
| Kilburn et al. (1996) |
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Krunkelbach Valley Uranium deposit, Menzenschwand, St Blasien, Waldshut, Freiburg Region, Baden-Württemberg, Germany