Vésigniéite
A valid IMA mineral species - grandfathered
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About Vésigniéite
Louis P. L. Vésignié
Formula:
BaCu3(VO4)2(OH)2
Colour:
Yellow-green, dark olive-green
Lustre:
Vitreous
Hardness:
3 - 4
Specific Gravity:
4.56
Crystal System:
Monoclinic
Name:
Named after Louis Paul Louis Vésignié (3 June 1870, La Ciotat, Bouches-du-Rhone, France - 25 August 1954), mineral collector and President of the Mineralogical Society of France. He assembled one of the finest collections in the world for his time. Portions of his collection went to the Sorbonne and the Natural History Museum in Paris.
Name Encoding
ASCII-7:
Vesignieite
Unique Identifiers
Mindat ID:
4175
Long-form identifier:
mindat:1:1:4175:7
IMA Classification of Vésigniéite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Cu2+3Ba(V5+O4)2(OH)2
Classification of Vésigniéite
8.BH.45
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
H : With medium-sized and large cations, (OH,etc.):RO4 = 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
H : With medium-sized and large cations, (OH,etc.):RO4 = 1:1
41.5.13.1
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
21.1.14
21 : Vanadates (and vanadates with arsenate or phosphate)
1 : Vanadates of the alkalis and Cu
21 : Vanadates (and vanadates with arsenate or phosphate)
1 : Vanadates of the alkalis and Cu
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 |
|---|---|---|
| Vsg | 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 Vésigniéite
Vitreous
Transparency:
Translucent
Colour:
Yellow-green, dark olive-green
Streak:
Greenish
Hardness:
3 - 4 on Mohs scale
Cleavage:
Perfect
Perfect on {001}, imperfect {110}
Perfect on {001}, imperfect {110}
Density:
4.56(10) g/cm3 (Measured) 4.7 g/cm3 (Calculated)
Optical Data of Vésigniéite
Type:
Biaxial (-)
RI values:
nα = 2.053 nβ = 2.129 nγ = 2.133
2V:
Measured: 60° , Calculated: 24°
Max. Birefringence:
δ = 0.080
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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized biaxial acute bisectrix (Bxa) interference figure
- the conoscopic view for a grain cut perpendicular to the acute bisectrix, using
this mineral's 2V. The two small white dots mark the melatopes - the points
where the two optic axes emerge - and are shown only when they fall within the
field of view. The coloured bands are isochromatics, and the dark bands are
isogyres.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Dispersion:
r < v strong
Chemistry of Vésigniéite
Mindat Formula:
BaCu3(VO4)2(OH)2
Element Weights:
Crystallography of Vésigniéite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C12/m1
Cell Parameters:
a = 10.255(15) Å, b = 5.898(13) Å, c = 7.718(8) Å
β = 116.42°
β = 116.42°
Ratio:
a:b:c = 1.739 : 1 : 1.309
Unit Cell V:
418.06 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Lamellar pseudohexagonal crystals, botryoidal aggregates, powdery.
Twinning:
Common, polysynthetic on {001}
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.207 Å | (10) |
| 2.709 Å | (9) |
| 2.288 Å | (8) |
| 2.554 Å | (7) |
| 1.815 Å | (6) |
| 1.610 Å | (6) |
| 1.475 Å | (6) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47e : [Vanadates, chromates, manganates] |
Geological Setting:
Secondary mineral formed in copper bearing uranium-vanadium deposits.
Type Occurrence of Vésigniéite
Synonyms of Vésigniéite
Other Language Names for Vésigniéite
Dutch:Vésigniéiet
German:Vésigniéit
Vesignieit
Vesignieit
Russian:Везиньеит
Simplified Chinese:钒钡铜矿
Spanish:Vesignieita
Traditional Chinese:釩鋇銅礦
Common Associates
Associations Based on Photo Data:
| 31 photos of Vésigniéite associated with Malachite | Cu2(CO3)(OH)2 |
| 8 photos of Vésigniéite associated with Volborthite | Cu3(V2O7)(OH)2 · 2H2O |
| 6 photos of Vésigniéite associated with Baryte | BaSO4 |
| 6 photos of Vésigniéite associated with Cuprite | Cu2O |
| 5 photos of Vésigniéite associated with Sulvanite | Cu3VS4 |
| 5 photos of Vésigniéite associated with Tenorite | CuO |
| 4 photos of Vésigniéite associated with Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| 4 photos of Vésigniéite associated with Plancheite | Cu8(Si8O22)(OH)4 · H2O |
| 4 photos of Vésigniéite associated with Calcite | CaCO3 |
| 3 photos of Vésigniéite associated with Roscoelite | KV3+2(AlSi3O10)(OH)2 |
Related Minerals - Strunz-mindat Grouping
| 8.BH. | Peterchinite | Zn3Zn2(OH)6As[O3(OH)3] |
| 8.BH. | Reznitskyite | CaMg(VO4)F |
| 8.BH. | Plumbogottlobite | PbMg(VO4)(OH) |
| 8.BH. | Cuprozheshengite | Pb4CuZn2(AsO4)2(PO4)2(OH)2 |
| 8.BH. | Zheshengite | Pb4ZnZn2(AsO4)2(PO4)2(OH)2 |
| 8.BH. | Crimsonite | PbFe3+2(PO4)2(OH)2 |
| 8.BH.05 | Thadeuite | Ca(Mg,Fe2+)3(PO4)2(OH,F)2 |
| 8.BH.10 | Panasqueiraite | CaMg(PO4)(OH) |
| 8.BH.10 | Isokite | CaMg(PO4)F |
| 8.BH.10 | Lacroixite | NaAl(PO4)F |
| 8.BH.10 | Arsenatrotitanite | NaTi(AsO4)O |
| 8.BH.10 | Maxwellite | NaFe3+(AsO4)F |
| 8.BH.10 | Durangite | NaAl(AsO4)F |
| 8.BH.10 | Kononovite | NaMg(SO4)F |
| 8.BH.15 | Drugmanite | Pb2Fe3+(PO4)(PO3OH)(OH)2 |
| 8.BH.20 | Nigelcookite | PbFe2+2V3+2(PO4)3(OH)3 |
| 8.BH.20 | Plumbojohntomaite | PbFe2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Cirrolite | Ca3Al2(PO4)3(OH)3 (?) |
| 8.BH.20 | Penikisite | Ba(Mg,Fe2+,Ca)2Al2(PO4)3(OH)3 |
| 8.BH.20 | Perloffite | Ba(Mn2+,Fe2+)2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Bjarebyite Group | |
| 8.BH.20 | Strontioperloffite | SrMn2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Plumboperloffite | PbMn2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Johntomaite | BaFe2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Bjarebyite | (Ba,Sr)(Mn2+,Fe2+,Mg)2Al2(PO4)3(OH)3 |
| 8.BH.20 | Kulanite | Ba(Fe2+,Mn2+,Mg)2(Al,Fe3+)2(PO4)3(OH)3 |
| 8.BH.25 | Bertossaite | Li2CaAl4(PO4)4(OH)4 |
| 8.BH.25 | Natropalermoite | Na2SrAl4(PO4)4(OH)4 |
| 8.BH.25 | Palermoite | Li2SrAl4(PO4)4(OH)4 |
| 8.BH.30 | Sewardite | CaFe3+2(AsO4)2(OH)2 |
| 8.BH.30 | Carminite | PbFe3+2(AsO4)2(OH)2 |
| 8.BH.35 | Adelite | CaMg(AsO4)(OH) |
| 8.BH.35 | Duftite | PbCu(AsO4)(OH) |
| 8.BH.35 | Cobaltaustinite | CaCo(AsO4)(OH) |
| 8.BH.35 | Nickelaustinite | CaNi(AsO4)(OH) |
| 8.BH.35 | Gabrielsonite | PbFe3+(As3+O3)O |
| 8.BH.35 | Conichalcite | CaCu(AsO4)(OH) |
| 8.BH.35 | Arsendescloizite | PbZn(AsO4)(OH) |
| 8.BH.35 | 'Duftite-alpha' | PbCu(AsO4)(OH) |
| 8.BH.35 | Gottlobite | CaMg(VO4)(OH) |
| 8.BH.35 | Austinite | CaZn(AsO4)(OH) |
| 8.BH.35 | Hermannroseite | CaCu(PO4)(OH) |
| 8.BH.35 | Tangeite | CaCu(VO4)(OH) |
| 8.BH.40 | Čechite | PbFe2+(VO4)(OH) |
| 8.BH.40 | Khorixasite | (Bi0.67◻0.33)Cu(VO4)(OH) |
| 8.BH.40 | Mottramite | PbCu(VO4)(OH) |
| 8.BH.40 | Descloizite | PbZn(VO4)(OH) |
| 8.BH.40 | Pyrobelonite | PbMn2+(VO4)(OH) |
| 8.BH.45 | Bayldonite | PbCu3(AsO4)2(OH)2 |
| 8.BH.50 | Paganoite | NiBi(AsO4)O |
| 8.BH.55 | Jagowerite | BaAl2(PO4)2(OH)2 |
| 8.BH.55 | Harrisonite | Ca(Fe2+,Mg)6(PO4)2(SiO4)2 |
| 8.BH.60 | Attakolite | CaMn2+Al4(SiO3OH)(PO4)3(OH)4 |
| 8.BH.65 | Leningradite | PbCu3(VO4)2Cl |
| 8.BH.70 | Katiarsite | KTiO(AsO4) |
| 8.BH.70 | Yurgensonite | K2SnTiO2(AsO4)2 |
| 8.BH.75 | Melanarsite | K3Cu7Fe3+O4(AsO4)4 |
| 8.BH.80 | Evseevite | Na2Mg(AsO4)F |
| 8.BH.80 | Moraskoite | Na2Mg(PO4)F |
| 8.BH.85 | Piccoliite | NaCaMn3+2(AsO4)2O(OH) |
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 Vésigniéite
mindat.org URL:
https://www.mindat.org/min-4175.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Vésigniéite
Reference List:
Guillemin, Claude (1956) Contribution à la minéralogie des arséniates, phosphates et vanadates de cuivre. II. — Phosphates et vanadates de cuivre. Bulletin de la Société française de Minéralogie et de Cristallographie, 79 (4). 219-275 doi:10.3406/bulmi.1956.5073
Localities for Vésigniéite
Showing 57 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.
Argentina | |
| Rainoldi et al. (2024) |
Australia | |
| Beyer et al. (1996) |
| Am Min 59:307-313 |
Canada | |
| R. Van Dommelen collection |
| Bottrill +2 other references |
Chile | |
| sample analysed by Hubert Putz |
Czech Republic | |
| Kohout et al. (1995) |
| J.Hyrsl (1992) | |
| Pauliš +3 other references |
| Johan et al. (1987) |
| Moravec et al. (1990) |
DR Congo | |
| Rocks & Minerals (1989) +3 other references |
France | |
| Anthony et al. (2016) |
Germany | |
| Kolitsch et al. (2005) |
| Walenta (1992) |
| Gröbner (2007) |
| |
| Schorr (1981) +1 other reference |
| Hentschel (1989) |
| Blaß et al. (2005) | |
| Hentschel (1989) | |
| Blaß et al. (2012) |
| Blass et al. (2006) |
| Markus Gerstmann - Collection |
| C.R.Acad.Sci.Paris (1955) +1 other reference |
| Gröbner et al. (2011) |
Italy | |
| Orlandi et al. (2009) |
| Orlandi et al. (2009) |
| NHM of the Pisa University collection +1 other reference |
Mexico | |
| Jones et al. (2021) |
Namibia | |
| Schneider et al. (1992) +1 other reference |
| Bowell et al. (2018) |
| von Bezing et al. (2016) |
Russia | |
| Pekov (1998) | |
Spain | |
| Calvo Rebollar (2015) |
Switzerland | |
| Stalder et al. (1998) |
UK | |
| from XRD and EPMA results - B. Smith |
| King et al. (1976) +4 other references |
| Hubbard et al. (2005) +2 other references |
| BMS Collection +4 other references |
| Rumsey & Turner +3 other references |
| Hubbard et al. (2001) |
Ukraine | |
| Alexander I. Tischenko (1996) |
USA | |
| Anthony et al. (1995) |
| Rob Bowell |
| Wenrich (1989) +1 other reference |
| Chris Emproto Collection |
| Anthony et al. (1995) |
| Anthony et al. (1995) | |
| Adams (2003) |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Newmont Mining Corporation |
| King et al. (1991) +1 other reference |
| Barrick Gold Corporation | |
| Barton et al. (2018) | |
Uzbekistan | |
| Pekov (1998) +1 other reference |
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New Cliffe Hill Quarry, Cliffe Hill Quarry, Stanton under Bardon, Hinckley and Bosworth, Leicestershire, England, UK