Fluckite (original) (raw)
A valid IMA mineral species
About FluckiteHide
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Formula:
CaMn2+(AsO3OH)2 · 2H2O
Colour:
colorless, pale pink, pale rose red
Lustre:
Sub-Vitreous, Waxy
Name:
Named in 1980 by Hubert Bari, Fabien Cesbron, François Permingeat, and Francois Pillard in honor of Pierre Fluck [b. October 29, 1947], Louis Pasteur University, Strasbourg, and later Universite de Haute-Alsace, France, who discovered the first specimen of the species.
This page provides mineralogical data about Fluckite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:1564:2
6dc43f07-7547-4ae8-a817-318cc60b1bd1
IMA Classification of FluckiteHide
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Approval history:
IMA1978-054
Type description reference:
Bari, Hubert, Cesbron, Fabien, Permingeat, François, Pillard, François (1980) La fluckite, arséniate hydraté de calcium et manganèse CaMnH2(AsO4)2·2H2O, une nouvelle espèce minérale. Bulletin de Minéralogie, 103 (1) 122-128 doi:10.3406/bulmi.1980.7384
Classification of FluckiteHide
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8.CG.
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
G : With large and medium-sized cations, RO4:H2O = 1:1
39.1.2.1
39 : HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
1 : A[HXO4]·xH2O
20.8.13
20 : Arsenates (also arsenates with phosphate, but without other anions)
8 : Arsenates of Mn
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 |
|---|---|---|
| Fck | 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 FluckiteHide
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Transparency:
Transparent, Translucent
Colour:
Colorless, pale pink, pale rose red
Cleavage:
Perfect
{010| perfect, {100} good; {101} poor.
Optical Data of FluckiteHide
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RI values:
_n_α = 1.618 _n_β = 1.627 _n_γ = 1.642
δ = 0.024
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Pleochroism:
Non-pleochroic
Chemistry of FluckiteHide
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Mindat Formula:
CaMn2+(AsO3OH)2 · 2H2O
Crystallography of FluckiteHide
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Class (H-M):
1 - Pinacoidal
Cell Parameters:
a = 8.459 Å, b = 7.613 Å, c = 6.968 Å
α = 82.21°, β = 98.25°, γ = 95.86°
Ratio:
a:b:c = 1.111 : 1 : 0.915
Unit Cell V:
438.42 ų (Calculated from Unit Cell)
Morphology:
Acicular, occasionally slender rod-like to prismatic. Dominant forms on type material are {100}, {110}, and {010}.
Comment:
Bull Min 103:129 (1980) structure
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0012068 | Fluckite | Catti M, Chiari G, Ferraris G (1980) Fluckite, CaMn(HAsO4)2*2H2O, a structure related by pseudo-polytypism to krautite MnHAsO4*H2O Bulletin de Mineralogie 103 129-134 | 1980 | Sainte Marie-aux-Mines, Alsace, France | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.32 Å | (50) |
| 7.51 Å | (100) |
| 3.77 Å | (60) |
| 3.53 Å | (90) |
| 3.27 Å | (90) |
| 2.98 Å | (80) |
| 2.69 Å | (60) |
| 2.67 Å | (50) |
Comments:
ICDD 33-290; 34-161.
Geological EnvironmentHide
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Type Occurrence of FluckiteHide
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General Appearance of Type Material:
Radiating prismatic crystals.
Place of Conservation of Type Material:
Muséum Nationale d’Histoire Naturelle, Paris, France (cotype).
Natural History Museum, London, United Kingdom, BM 1979,431 (cotype).
Ecole Nationale Supérieure des Mines, Paris, France, 54532, 54539 (cotype).
Musée Minéralogique, Sainte-Marie-aux-Mines, France (cotype).
Associated Minerals at Type Locality:
Reference:
Bari, H., Cesbron, F., Permingeat, F., Pillard, F. (1980) La fluckite, arséniate hydraté de calcium et manganèse CaMnH2(AsO4)2.2H2O, une nouvelle espèce minérale. Bulletin de Minéralogie: 103: 122-128.
Synonyms of FluckiteHide
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Other Language Names for FluckiteHide
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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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Fluorescence of FluckiteHide
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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 FluckiteHide
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References for FluckiteHide
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Reference List:
Bari, Hubert, Cesbron, Fabien, Permingeat, François, Pillard, François (1980) La fluckite, arséniate hydraté de calcium et manganèse CaMnH2(AsO4)2·2H2O, une nouvelle espèce minérale. Bulletin de Minéralogie, 103 (1) 122-128 doi:10.3406/bulmi.1980.7384
Bari, Hubert, Cesbron, Fabien, Permingeat, François, Pillard, François (1980) La fluckite, arséniate hydraté de calcium et manganèse CaMnH2(AsO4)2·2H2O, une nouvelle espèce minérale. Bulletin de Minéralogie, 103 (1) 122-128 doi:10.3406/bulmi.1980.7384
Localities for FluckiteHide
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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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