Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate)
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About Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate)
Formula:
Ca[Zn8(SO4)2(OH)12Cl2](H2O)9
Crystal System:
Trigonal
Synthetic (anthropogenic) analogue of tzeferisite.
Structurally related to gordaite. Forms colourless hexagonal plates arranged in rosette-like aggregates.
Cu-bearing pale bluish green varieties are known from a slag locality (Herzog Julius smelter, http://www.mindat.org/loc-6026.html) in the Harz Mts, Germany (U. Kolitsch, unpublished data). They are usually erroneously labeled "namuwite".
Compare 'Unnamed (Zn Sulphate-Hydroxide-Chloride-Hydrate)' and 'UM1987-14-SO:ClHZn'.
Structurally related to gordaite. Forms colourless hexagonal plates arranged in rosette-like aggregates.
Cu-bearing pale bluish green varieties are known from a slag locality (Herzog Julius smelter, http://www.mindat.org/loc-6026.html) in the Harz Mts, Germany (U. Kolitsch, unpublished data). They are usually erroneously labeled "namuwite".
Compare 'Unnamed (Zn Sulphate-Hydroxide-Chloride-Hydrate)' and 'UM1987-14-SO:ClHZn'.
Unique Identifiers
Mindat ID:
29347
Long-form identifier:
mindat:1:1:29347:5
Chemistry of Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate)
Mindat Formula:
Ca[Zn8(SO4)2(OH)12Cl2](H2O)9
Element Weights:
Crystallography of Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate)
Crystal System:
Trigonal
Class (H-M):
3m(32/m) - Hexagonal Scalenohedral
Space Group:
R3c
Cell Parameters:
a = 8.3797 Å, c = 68.123 Å
Ratio:
a:c = 1 : 8.13
Unit Cell V:
4142.7 ų
Z:
6
Common Associates
Associations Based on Photo Data:
| 5 photos of Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate) associated with Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| 1 photo of Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate) associated with Laurionite | PbCl(OH) |
| 1 photo of Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate) associated with 'Slag' | |
| 1 photo of Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate) associated with Anglesite | PbSO4 |
| 1 photo of Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate) associated with Cumengeite | Pb21Cu20Cl42(OH)40 · 6H2O |
| 1 photo of Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate) associated with Schulenbergite | (Cu,Zn)7(SO4)2(OH)10 · 3H2O |
| 1 photo of Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate) associated with Kapellasite | Cu3Zn(OH)6Cl2 |
| 1 photo of Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate) associated with Gypsum | CaSO4 · 2H2O |
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 Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate)
mindat.org URL:
https://www.mindat.org/min-29347.html
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References for Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate)
Reference List:
Localities for Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate)
Showing 4 localities.
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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.
Austria | |
| Kolitsch (2013) |
Germany | |
| Uwe Kolitsch (SXRD, EDS, optics) +1 other reference |
| Neschen (n.d.) |
Italy | |
| Burns et al. (1998) |
Herzog Julius smelter slag locality, Astfeld, Langelsheim, Goslar District, Lower Saxony, Germany