Ferrohexahydrite
A valid IMA mineral species - grandfathered
This page is currently not sponsored. Click here to sponsor this page.
About Ferrohexahydrite
Formula:
FeSO4 · 6H2O
Colour:
Bluish green, colourless, white, light brownish
Hardness:
2
Specific Gravity:
1.934 (Calculated)
Crystal System:
Monoclinic
Member of:
Name:
The iron analogue of hexahydrite
This page provides mineralogical data about Ferrohexahydrite.
Unique Identifiers
Mindat ID:
1517
Long-form identifier:
mindat:1:1:1517:8
GUID
(UUID V4):
(UUID V4):
65511a9a-f064-4cba-a2de-c367465e7b10
IMA Classification of Ferrohexahydrite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Fe2+(SO4) · 6H2O
Classification of Ferrohexahydrite
7.CB.25
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
29.6.8.3
29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
25.10.4
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 |
|---|---|---|
| Fhhy | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Ferrohexahydrite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Ferrohexahydrite
Transparency:
Transparent
Colour:
Bluish green, colourless, white, light brownish
Hardness:
2 on Mohs scale
Density:
1.934 g/cm3 (Calculated)
Optical Data of Ferrohexahydrite
Type:
Biaxial (-)
RI values:
nα = 1.468 nγ = 1.498
Max Birefringence:
δ = 0.030
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:
Moderate
Dispersion:
relatively weak
Chemistry of Ferrohexahydrite
Mindat Formula:
FeSO4 · 6H2O
Elements listed:
Crystallography of Ferrohexahydrite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 10.08 Å, b = 7.28 Å, c = 24.59 Å
β = 98.37°
β = 98.37°
Ratio:
a:b:c = 1.385 : 1 : 3.378
Unit Cell V:
1,785.25 ų (Calculated from Unit Cell)
Z:
8
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.89 Å | (6) |
| 4.43 Å | (10) |
| 2.97 Å | (7) |
| 2.93 Å | (7) |
| 2.03 Å | (6) |
| 1.881 Å | (6) |
| 1.862 Å | (6) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 25 : Evaporites (prebiotic) | |
| Stage 7: Great Oxidation Event | <2.4 |
| 45a : [Sulfates, arsenates, selenates, antimonates] | |
| 47a : [Near-surface hydration of prior minerals] | |
| 47b : [Sulfates and sulfites] |
Type Occurrence of Ferrohexahydrite
Other Language Names for Ferrohexahydrite
German:Ferrohexahydrit
Spanish:Ferrohexahydrita
Relationship of Ferrohexahydrite to other Species
Member of:
Other Members of this group:
| Bianchite | Zn(SO4) · 6H2O | Mon. 2/m : P2/m |
| Chvaleticeite | Mn(SO4) · 6H2O | Mon. 2/m : B2/b |
| Hexahydrite | MgSO4 · 6H2O | Mon. 2/m : P2/m |
| Moorhouseite | Co(SO4) · 6H2O | Mon. 2/m : B2/b |
| Nickelhexahydrite | Ni(SO4) · 6H2O | Mon. 2/m : B2/b |
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.20 | Siderotil | FeSO4 · 5H2O |
| 7.CB.25 | Bianchite | Zn(SO4) · 6H2O |
| 7.CB.25 | Chvaleticeite | Mn(SO4) · 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:
Hygroscopic; soluble in H2O
Special Storage/
Display Requirements:
Display Requirements:
Hygroscopic
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 Ferrohexahydrite
mindat.org URL:
https://www.mindat.org/min-1517.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Ferrohexahydrite
Reference List:
Localities for Ferrohexahydrite
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) |
Austria | |
| Strasser (1989) |
Belgium | |
| Van Tassel (1973) +2 other references |
Czech Republic | |
| Lapis 2002 (7/8) |
| Matýsek D. |
| Dalibor Matýsek |
Germany | |
| |
| Schnorrer-Köhler (1988) | |
| Witzke et al. (1997) |
Greece | |
| Rieck et al. (2020) |
| Rieck et al. (2020) |
Italy | |
| Russo et al. (2004) |
| Russo et al. (2004) | |
Japan | |
| Nambu et al (1979) |
Poland | |
| Cabała et al. (2008) |
Russia | |
| Bortnikova et al. (2008) |
| Mineralogical Society of America - ... +1 other reference | |
Slovakia | |
| Koděra (1986) |
South Africa | |
| Cairncross et al. (1995) |
Spain | |
| |
Switzerland | |
| Analyses Nicolas Meisser (17/01/2018) |
Ukraine (TL) | |
| Vlasov V V (1962) +1 other reference |
USA | |
| Hanson (2000) +2 other references |
| Cerato |
| Dietrich (1990) |
| Dietrich (1990) | |
| Dietrich (1990) |
Quick NavTopAbout FerrohexahydriteUnique IdentifiersIMA Classification Classification Mineral SymbolsPronunciation Physical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence Other LanguagesRelationshipsStrunz-MindatOther InformationInternet Links References Localities Locality List
Sulphide deposit, Sohland an der Spree, Bautzen District, Saxony, Germany