Yvonite
A valid IMA mineral species
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About Yvonite
Klaus Yvon
Formula:
Cu(HAsO4) · 2H2O
Colour:
Turquoise-blue
Lustre:
Vitreous
Hardness:
3½ - 4
Specific Gravity:
3.20
Crystal System:
Triclinic
Member of:
Name:
Named after Klaus Yvon (b. 1943), Professor of Crystallography at the University of Geneva, Switzerland.
Unique Identifiers
Mindat ID:
7382
Long-form identifier:
mindat:1:1:7382:6
Similar Names
IMA Classification of Yvonite
Approved
IMA Formula:
Cu2+(As5+O3OH)·2H2O
Approval year:
1995
First published:
1998
Classification of Yvonite
8.CB.25
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
B : With only medium-sized cations, RO4:H2O = 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
B : With only medium-sized cations, RO4:H2O = 1:1
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 for Standard |
|---|---|---|
| Yv | 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 Yvonite
Vitreous
Transparency:
Transparent
Colour:
Turquoise-blue
Streak:
Blue
Hardness:
3½ - 4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
On {100}, perfect; on {010}, poor.
On {100}, perfect; on {010}, poor.
Fracture:
Irregular/Uneven
Density:
3.20(2) g/cm3 (Measured) 3.22 g/cm3 (Calculated)
Optical Data of Yvonite
Type:
Biaxial (-)
RI values:
nα = 1.615(2) nβ = 1.660(2) nγ = 1.700(2)
2V:
Measured: 82° (2), Calculated: 84°
Max. Birefringence:
δ = 0.085
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Dispersion:
r > v medium
Optical Extinction:
On (010): X ∧ c = 42°; Z ⊥ (010).
On (100): Z' ∧ [001] = 0-2.5°; X' ∧ c = 3-5.5°.
On (100): Z' ∧ [001] = 0-2.5°; X' ∧ c = 3-5.5°.
Pleochroism:
Weak
Comments:
X = light blue to colorless; Y = light blue; Z = blue.
Comments:
Absorption: Z > Y > X.
Chemistry of Yvonite
Mindat Formula:
Cu(HAsO4) · 2H2O
Element Weights:
Elements listed:
Crystallography of Yvonite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 7.632(3) Å, b = 11.168(3) Å, c = 6.020(3) Å
α = 89.32(3)°, β = 86.55(5)°, γ = 74.43(3)°
α = 89.32(3)°, β = 86.55(5)°, γ = 74.43(3)°
Ratio:
a:b:c = 0.683 : 1 : 0.539
Unit Cell V:
493.38 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Elongated along [001], flattened on {010}, with prominent {100} and {010}. Small crystals also exhibit minor {hkl} and {001} forms.
Twinning:
Multiple laminae, with composition plane {010}, twin axis ⊥ {010}.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
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) |
|---|---|---|---|---|---|---|---|
| 0001977 | Yvonite | Sarp H, Cerny R (1998) Description and crystal structure of yvonite, Cu(AsO3OH)2H2O American Mineralogist 83 383-389 |  | 1998 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.35 Å | (100) |
| 5.239 Å | (50) |
| 4.40 Å | (60) |
| 3.936 Å | (60) |
| 3.302 Å | (40) |
| 3.008 Å | (50) |
| 2.840 Å | (35) |
Comments:
Salsigne mine, France. Data from type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] |
Type Occurrence of Yvonite
General Appearance of Type Material:
Aggregates or radiated spherule to 1 mm. Individual crystals of maximum size 0.3 x 0.15 x 0.06 mm.
Place of Conservation of Type Material:
Natural History Museum, Geneva University, Geneva, Switzerland, 450/33.
Geological Setting of Type Material:
Secondary mineral from mine dumps.
Associated Minerals at Type Locality:
Synonyms of Yvonite
Other Language Names for Yvonite
Relationship of Yvonite to other Species
Common Associates
Associations Based on Photo Data:
| 34 photos of Yvonite associated with Geminite | Cu2+(AsO3OH) · H2O |
| 29 photos of Yvonite associated with Pushcharovskite | K0.6Cu18[AsO2(OH)2]4[AsO3OH]10(AsO4)(OH)9.6 · 18.6H2O |
| 11 photos of Yvonite associated with Native Bismuth | Bi |
| 4 photos of Yvonite associated with Arsenopyrite | FeAsS |
| 1 photo of Yvonite associated with Arsenolite | As2O3 |
Related Minerals - Strunz-mindat Grouping
| 8.CB. | Krupičkaite | Cu6[AsO3(OH)]6 · 8H2O |
| 8.CB.X | Honzaite | Ni2(AsO3OH)2 · 5H2O |
| 8.CB.X | Redondite | AlPO4 · 2H2O |
| 8.CB.05 | Ermeloite | Al(PO4) · H2O |
| 8.CB.05 | Serrabrancaite | MnPO4 · H2O |
| 8.CB.10 | Nyholmite | Cd3Zn2(AsO3OH)2(AsO4)2 · 4H2O |
| 8.CB.10 | Villyaellenite | (Mn,Ca)Mn2Ca2(AsO3OH)2(AsO4)2 · 4H2O |
| 8.CB.10 | Giftgrubeite | CaMn2Ca2(AsO4)2(AsO3OH)2 · 4H2O |
| 8.CB.10 | Hureaulite | Mn2+5(PO3OH)2(PO4)2 · 4H2O |
| 8.CB.10 | Miguelromeroite | Mn2+5(AsO3OH)2(AsO4)2(H2O)4 |
| 8.CB.10 | 'UM1997-09-AsO:CaHMgZn' | (Mg,Ca,Zn)5(AsO4)2(HAsO4)2 · 4H2O |
| 8.CB.15 | Krautite | Mn(HAsO4) · H2O |
| 8.CB.20 | Cobaltkoritnigite | Co(AsO3OH) · H2O |
| 8.CB.20 | Magnesiokoritnigite | Mg(AsO3OH) · H2O |
| 8.CB.20 | Koritnigite | Zn(AsO3OH) · H2O |
| 8.CB.30 | Geminite | Cu2+(AsO3OH) · H2O |
| 8.CB.35 | Schubnelite | Fe3+VO4 · H2O |
| 8.CB.40 | Radovanite | Cu2Fe3+(AsO4)(HAs3+O3)2 · H2O |
| 8.CB.45 | Kazakhstanite | Fe3+5V4+3V5+12O39(OH)9 · 9H2O |
| 8.CB.50 | Kolovratite | NixZny(VO4)0.67(x+y) · nH2O |
| 8.CB.60 | Burgessite | Co2(H2O)4[AsO3(OH)]2(H2O) |
| 8.CB.65 | Cardite | Zn5.5(AsO4)2(AsO3OH)(OH)3 · 3H2O |
Fluorescence of Yvonite
Not fluorescent (LW or SW).
Other Information
Notes:
Rapidly soluble in HCl.
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 Yvonite
mindat.org URL:
https://www.mindat.org/min-7382.html
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Please feel free to link to this page.
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References for Yvonite
Localities for Yvonite
Showing 4 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.
Czech Republic | |
| M.E. Ciriotti - 04.06.2008 - Probed |
France (TL) | |
| Sarp et al. (1998) |
| Sarp et al. (1997) +2 other references |
Namibia | |
| von Bezing et al. (2016) |
Quick NavTopAbout YvoniteUnique IdentifiersSimilar NamesIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatFluorescence Other InformationInternet Links References Localities Locality List
Salsigne mine, Salsigne, Carcassonne, Aude, Occitanie, France