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Hexahydrite Group
A group of related mineral species
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About Hexahydrite Group
Formula:
MSO4 · 6H2O
Name:
After the principal mineral of the group: Hexahydrite.
A group of monoclinic hexahydrated sulphates with the above general formula, where M = divalent Mg, Mn, Fe, Co, Ni, Zn.
Compare also the tetragonal retgersite.
Compare the Epsomite Group and the Melanterite Group.
The hexahydrite structure type may be expanded into the melanterite structure type through the intercalation of an interstitial water molecule.
Compare also the tetragonal retgersite.
Compare the Epsomite Group and the Melanterite Group.
The hexahydrite structure type may be expanded into the melanterite structure type through the intercalation of an interstitial water molecule.
Unique Identifiers
Mindat ID:
29297
Long-form identifier:
mindat:1:1:29297:1
Chemistry of Hexahydrite Group
Mindat Formula:
MSO4 · 6H2O
Crystal Structure
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2x2x2 | 3x3x3 | 4x4x4
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2x2x2 | 3x3x3 | 4x4x4
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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) |
|---|---|---|---|---|---|---|---|
| 0019606 | Bianchite | Anderson J L, Peterson R C, Swainson I (2012) The atomic structure of deuterated boyleite ZnSO4*4D2O, ilesite MnSO4*4D2O, and bianchite ZnSO4*6D2O American Mineralogist 97 1905-1914 | 2012 | synthetic | 0 | 293 | |
| 0010070 | Moorhouseite | Elerman Y (1988) Refinement of the crystal structure of CoSO4*6H2O Acta Crystallographica C44 599-601 |  | 1988 | synthetic | 0 | 293 |
| 0018487 | Bianchite | Spiess M, Gruehn R (1979) Zur thermischen Dehydratisierung des ZnSO4*7H2O und zum Hochtemperaturverhalten von wasserfreiem ZnSO4 Zeitschrift fur Anorganische und Allgemeine Chemie 456 222-240 | 1979 | synthetic, made by dehydration of ZnSO4*7H2O | 0 | 293 | |
| 0009280 | Hexahydrite | Zalkin A, Ruben H, Templeton D H (1964) The crystal structure and hydrogen bonding of magnesium sulfate hexahydrate Acta Crystallographica 17 235-240 | | 1964 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
Relationship of Hexahydrite Group to other Species
Hexahydrite Group Members:
| Bianchite | Zn(H2O)6(SO4) | Mon. 2/m : P2/c |
| Chvaleticeite | Mn2+(H2O)6(SO4) | Mon. 2/m : B2/b |
| Ferrohexahydrite | Fe2+(H2O)6(SO4) | Mon. 2/m : B2/b |
| Hexahydrite | Mg(H2O)6(SO4) | Mon. 2/m : P2/c |
| Moorhouseite | Co2+(H2O)6(SO4) | Mon. 2/m : B2/b |
| Nickelhexahydrite | Ni2+(H2O)6(SO4) | Mon. 2/m : B2/b |
Click on any node to view relationships. Formula-derived relationship network for the group members above. Use Find related species to add formula-neighbour species outside the current group view. Solid links show inferred chemical differences; dashed violet links show same-formula crystallographic differences. Hydration states are not treated as relationship changes. These relationships do not imply any real-world substitution reactions between these species.
Other Information
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 Hexahydrite Group
mindat.org URL:
https://www.mindat.org/min-29297.html
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Please feel free to link to this page.
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References for Hexahydrite Group
Localities for Hexahydrite Group
Showing 484 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.
Algeria | |
| [Ferrohexahydrite] Khelfaoui et al. (2020) |
Andorra | |
| [Ferrohexahydrite] Valenti Turu and Michels (1992) |
Antarctica | |
| [Hexahydrite] Watanuki/ Torii/ Nishiyama/ Morikawa |
| [Hexahydrite] Barczuk A. & Tatur A. 2003: BIOGENIC ... |
| [Hexahydrite] Barczuk et al. (2003) | |
Argentina | |
| [Hexahydrite] Márquez-Zavalía et al. (1995) +1 other reference |
| [Hexahydrite] Peterson (2011) |
| [Hexahydrite] Bengochea et al. (1998) |
Australia | |
| [Bianchite] Mineralogical Society of America - ... |
| [Hexahydrite] Ashley et al. (1999) |
| [Bianchite] Ashley et al. (1999) |
| [Hexahydrite] Red River Resources |
| [Hexahydrite] Sielecki (1988) +1 other reference |
| [Hexahydrite] Sielecki (1988) | |
| [Hexahydrite] Harris et al. (2003) |
| [Hexahydrite] Rob Fitzpatrick et al. (2010) |
|
Rio Gerla, Tiglieto, Genoa, Liguria, Italy