Claringbullite (original) (raw)
A valid IMA mineral species
About ClaringbulliteHide
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Originally assumed to be Cu4(OH)7Cl.nH2O.
Name:
Named in honor of Gordon Frank Claringbull (21 August 1911 - 23 November 1990), former Keeper of Mineralogy and Director of the British Natural History Museum, London, England. He helped describe six new minerals including the rare gemstones taaffeite, sinhalite, and painite.
This page provides mineralogical data about Claringbullite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:1058:6
b2801a9a-761e-4655-982f-5b0d48b209dc
IMA Classification of ClaringbulliteHide
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IMA status notes:
Redefined by the IMA
Approval history:
Originally approved with the formula Cu4Cl(OH)7. Redefined by IMA in 2016, as it was recognised that the correct formula of claringbullite is Cu2+4FCl(OH)6.
Type description reference:
Classification of ClaringbulliteHide
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3.DA.15
3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
A : With Cu, etc., without Pb
10.5.6.1
10 : OXYHALIDES AND HYDROXYHALIDES
5 : Am(O,OH)pXq
8.2.10
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
2 : Halides of Cu
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Cgb | 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 ClaringbulliteHide
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Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Sorry, your browser doesn't support HTML5 audio. | Jolyon Ralph | United Kingdom |
Physical Properties of ClaringbulliteHide
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Transparency:
Transparent, Translucent
Comment:
Pale blue in transmitted light.
Cleavage:
Perfect
Perfect on {0001}; distinct on {1010} and {1120}.
Density:
3.9 g/cm3 (Measured) 3.99 g/cm3 (Calculated)
Optical Data of ClaringbulliteHide
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RI values:
_n_ω = 1.782 _n_ε = 1.780
δ = 0.002
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Chemistry of ClaringbulliteHide
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Mindat Formula:
Cu4ClF(OH)6
Originally assumed to be Cu4(OH)7Cl.nH2O.
Crystallography of ClaringbulliteHide
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Class (H-M):
6/m m m _(_6/_m_2/_m_2/m ) - Dihexagonal Dipyramidal
Cell Parameters:
a = 6.6733(5) Å, c = 9.185(1) Å
Unit Cell V:
354.23 ų (Calculated from Unit Cell)
Morphology:
Thin plates in slightly divergent groups. Crystals are flattened on {0001}.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0005432 | Claringbullite | Burns P C, Cooper M A, Hawthorne F C (1995) Claringbullite: A Cu oxysalt with Cu in trigonal-prismatic coordination The Canadian Mineralogist 33 633-639 |  |
1995 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.75 Å | (very very strong) |
| 4.89 Å | (strong) |
| 4.58 Å | (strong) |
| 2.889 Å | (medium strong) |
| 2.700 Å | (very very strong) |
| 2.445 Å | (very strong) |
| 1.797 Å | (medium strong) |
Geological EnvironmentHide
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Type Occurrence of ClaringbulliteHide
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General Appearance of Type Material:
Slightly divergent group of blue plates up to 1 mm across on cuprite.
Place of Conservation of Type Material:
The Natural History Museum, London, England, number 1976,109 (Zambian).
University of Pierre and Marie Curie, Paris; National School of Mines, Paris, France (Katangan).
National Museum of Natural History, Washington, D.C., USA, number 145660.
Associated Minerals at Type Locality:
Reference:
Fejer, E. E., Clark, A. M., Couper, A. G., & Elliott, C. J. (1977). Claringbullite, a new hydrated copper chloride. Mineralogical Magazine, 41(320), 433-436.
Synonyms of ClaringbulliteHide
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Other Language Names for ClaringbulliteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Other InformationHide
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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 ClaringbulliteHide
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References for ClaringbulliteHide
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Reference List:
Localities for ClaringbulliteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.