Vuagnatite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Vuagnatite
Marc B. Vuagnat
Formula:
CaAl(SiO4)(OH)
Colour:
Colourless, light blue, tan
Lustre:
Vitreous
Hardness:
6
Specific Gravity:
3.42
Crystal System:
Orthorhombic
Member of:
Name:
Named in honor of Prof Dr. Marc Bernard Vuagnat (30 January 1922 - 23 March 2015), professor of geology, University of Geneva, Switzerland, "in recognition of his work spanning some twenty-five years in the field of ophiolites".
This page provides mineralogical data about Vuagnatite.
Unique Identifiers
Mindat ID:
4212
Long-form identifier:
mindat:1:1:4212:9
GUID
(UUID V4):
(UUID V4):
89d4640c-7468-42e4-8f8d-04d3eb87866b
IMA Classification of Vuagnatite
Approved
IMA Formula:
CaAlSiO4(OH)
Approval year:
1975
First published:
1976
Classification of Vuagnatite
9.AG.60
9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination
9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination
52.4.2.2
52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
4 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
4 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
16.9.7
16 : Silicates Containing Aluminum and other Metals
9 : Aluminosilicates of Ca
16 : Silicates Containing Aluminum and other Metals
9 : Aluminosilicates of Ca
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Vgn | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Vuagnatite
Vitreous
Transparency:
Translucent
Colour:
Colourless, light blue, tan
Hardness:
6 on Mohs scale
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
3.42(2) g/cm3 (Measured) 3.41 g/cm3 (Calculated)
Optical Data of Vuagnatite
Type:
Biaxial (-)
RI values:
nα = 1.701(2) nβ = 1.724(2) nγ = 1.727(2)
2V:
Measured: 44° (1), Calculated: 46°
Max Birefringence:
δ = 0.026
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
Strong to very strong, r < v.
Optical Extinction:
X = c; Y = b; Z = a.
Pleochroism:
Visible
Comments:
X = colorless or yellowish brown; Y = Z = colorless.
Comments:
Absorption: X >> Y = Z.
Chemistry of Vuagnatite
Mindat Formula:
CaAl(SiO4)(OH)
Common Impurities:
H2O
Crystallography of Vuagnatite
Crystal System:
Orthorhombic
Class (H-M):
2 2 2 - Disphenoidal
Space Group:
P21 21 21
Cell Parameters:
a = 7.0538(4) Å, b = 8.5410(4) Å, c = 5.6839(3) Å
Ratio:
a:b:c = 0.826 : 1 : 0.665
Unit Cell V:
342.44 Ă
Âł (Calculated from Unit Cell)
Z:
4
Crystallographic forms of Vuagnatite
Crystal Atlas:
Image Loading
Click on an icon to view
Vuagnatite - Prismatic {110}
3d models and HTML5 code kindly provided by
www.smorf.nl.
Toggle
Edge Lines | Miller Indices | Axes
Transparency
Opaque | Translucent | Transparent
View
Along a-axis | Along b-axis | Along c-axis | Start rotation | Stop rotation
Toggle
Edge Lines | Miller Indices | Axes
Transparency
Opaque | Translucent | Transparent
View
Along a-axis | Along b-axis | Along c-axis | Start rotation | Stop rotation
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
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) |
|---|---|---|---|---|---|---|---|
| 0000525 | Vuagnatite | McNear E, Vincent M G, Parthe E (1976) The crystal structure of vuagnatite, CaAl(OH)SiO4 American Mineralogist 61 831-838 |  | 1976 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Image Loading
Radiation - Copper Kα
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.518 Ă | (100) |
| 2.997 Ă | (95) |
| 2.640 Ă | (85) |
| 2.215 Ă | (85) |
| 2.453 Ă | (70) |
| 2.142 Ă | (65) |
| 2.395 Ă | (60) |
Comments:
Red Mountain, California, USA. Data from Pabst et al. (1977).
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3b: Earthâs earliest hydrosphere | >4.45 |
| 13 : Hadean serpentinization |
Type Occurrence of Vuagnatite
General Appearance of Type Material:
Anhedral and intimately intergrown with other calcium silicates and chlorite. As a replacement of plagioclase. Crystals from 0.03 to 0.5 mm in diameter. Frequently included by clinochlore, vesuvianite and hydrogrossular.
Place of Conservation of Type Material:
Natural History Museum, Geneva, 435/1; University of Geneva, Geneva, Switzerland; National Museum of Natural History, Washington, D.C., USA, 146560.
Geological Setting of Type Material:
In rodingitized pegmatitic anorthositic gabbro dykes, cross-cutting harzburgite-serpentinite from an ophiolitic zone.
Associated Minerals at Type Locality:
Reference:
Sarp, H., Bertrand, J., McNear, E. (1976) Vuagnatite, CaAl(OH)SiO4, a new natural calcium aluminum neosilicate. American Mineralogist: 61: 825-830.
Synonyms of Vuagnatite
Other Language Names for Vuagnatite
Relationship of Vuagnatite to other Species
Member of:
Other Members of this group:
| Adelite | CaMg(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Arsendescloizite | PbZn(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Austinite | CaZn(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Äechite | PbFe2+(VO4)(OH) | Orth. mmm (2/m 2/m 2/m) |
| Cobaltaustinite | CaCo(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Conichalcite | CaCu(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Descloizite | PbZn(VO4)(OH) | Orth. mmm (2/m 2/m 2/m) : Pnma |
| Duftite | PbCu(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Duftite-alpha | PbCu(AsO4)(OH) | |
| Gottlobite | CaMg(VO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Hermannroseite | CaCu(PO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Mottramite | PbCu(VO4)(OH) | Orth. mmm (2/m 2/m 2/m) : Pnma |
| Nickelaustinite | CaNi(AsO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Pyrobelonite | PbMn2+(VO4)(OH) | Orth. mmm (2/m 2/m 2/m) : Pnma |
| Tangeite | CaCu(VO4)(OH) | Orth. 2 2 2 : P21 21 21 |
| Unnamed (Pb-analogue of Nickelaustinite) | PbNi(AsO4)(OH) |
Structurally related to group(s):
| Tilasite Group | A group of monoclinic arsenates. |
Common Associates
Associated Minerals Based on Photo Data:
| 8 photos of Vuagnatite associated with Mcguinnessite | (Mg,Cu)2(CO3)(OH)2 |
| 2 photos of Vuagnatite associated with Piemontite-(Sr) | (CaSr)(AlAlMn3+)O[Si2O7][SiO4](OH) |
Related Minerals - Strunz-mindat Grouping
| 9.AG. | Ivanyukite-Na-T | Na2Ti4(SiO4)3(OH)O3 · 7H2O |
| 9.AG. | Ivanyukite-Na-C | Na2Ti4(SiO4)3(OH)2O2 · 6H2O |
| 9.AG. | Edgrewite | Ca9(SiO4)4F2 |
| 9.AG. | Aluminotaipingite-(CeCa) | (Ce6Ca3)â»Al(SiO4)3[SiO3(OH)]4F3 |
| 9.AG.02 | Gatedalite | ZrMn2+2Mn3+4SiO12 |
| 9.AG.2 | Skogbyite | Zr(Mg2Mn3+4)SiO12 |
| 9.AG.05 | Abswurmbachite | CuMn3+6(SiO4)O8 |
| 9.AG.05 | Braunite | Mn2+Mn3+6(SiO4)O8 |
| 9.AG.05 | Neltnerite | CaMn3+6(SiO4)O8 |
| 9.AG.05 | Braunite-II | CaMn3+14(SiO4)O20 |
| 9.AG.10 | LĂ„ngbanite | Mn2+4Mn3+9Sb5+O16(SiO4)2 |
| 9.AG.12 | Taipingite-(CeCa) | (Ce7Ca2)â»Mg(SiO4)3[SiO3(OH)]4F3 |
| 9.AG.15 | Malayaite | CaSn(SiO4)O |
| 9.AG.15 | Titanite | CaTi(SiO4)O |
| 9.AG.15 | Vanadomalayaite | CaV4+(SiO4)O |
| 9.AG.15 | Natrotitanite | (Na0.5Y0.5)Ti(SiO4)O |
| 9.AG.15 | Ć»abiĆskiite | Ca[Al0.5(Ta,Nb)0.5)](SiO4)O |
| 9.AG.20 | Cerite-(CeCa) | (Ce7Ca2)â»Mg(SiO4)3(SiO3OH)4(OH)3 |
| 9.AG.20 | Ferricerite-(LaCa) | (La6Ca3)â»Fe3+(SiO4)3(SiO3OH)4(OH)3 |
| 9.AG.20 | Aluminocerite-(CeCa) | (Ce6Ca3)â»Al(SiO4)3[SiO3(OH)]4(OH)3 |
| 9.AG.20 | Nipeiite-(Ce) | Ce9Fe3+(SiO4)6[SiO3(OH)](OH)3 |
| 9.AG.25 | Trimounsite-(Y) | Y2Ti2(SiO4)O5 |
| 9.AG.25 | Yftisite-(Y) | (Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)6 |
| 9.AG.25 | Mieite-(Y) | Y4Ti(SiO4)2O[F,(OH)]6 |
| 9.AG.30 | Sitinakite | KNa2Ti4(SiO4)2O5(OH) · 4H2O |
| 9.AG.35 | Kittatinnyite | Ca2Mn2Mn(SiO4)2(OH)4 · 9H2O |
| 9.AG.40a | Natisite | Na2Ti(SiO4)O |
| 9.AG.40b | Paranatisite | Na2Ti(SiO4)O |
| 9.AG.45 | Törnebohmite-(Ce) | Ce2Al(SiO4)2(OH) |
| 9.AG.45 | Törnebohmite-(La) | La2Al(SiO4)2(OH) |
| 9.AG.50 | Kuliokite-(Y) | Y4Al(SiO4)2(OH)2F5 |
| 9.AG.50 | Ivanyukite-Na | Na2Ti4(SiO4)3(OH)2O2 · 6H2O |
| 9.AG.50 | Ivanyukite-K | K2Ti4(SiO4)3(OH)2O2 · 9H2O |
| 9.AG.50 | Ivanyukite-Cu | CuTi4(SiO4)3(OH)2O2 · 7H2O |
| 9.AG.50 | Hydroxyledgrewite | Ca9(SiO4)4(OH)2 |
| 9.AG.52 | Ulfanderssonite-(Ce) | (Ce15Ca)ÎŁ16Mg2(SiO4)10(SiO3OH)(OH,F)5Cl3 |
| 9.AG.55 | Chantalite | CaAl2(SiO4)(OH)4 |
| 9.AG.60 | Mozartite | CaMn3+(SiO4)(OH) |
| 9.AG.65 | Hatrurite | Ca3(SiO4)O |
| 9.AG.70 | Jasmundite | Ca11(SiO4)4O2S |
| 9.AG.75 | Afwillite | Ca3(HSiO4)2 · 2H2O |
| 9.AG.80 | Bultfonteinite | Ca2(HSiO4)F · H2O |
| 9.AG.85 | Zoltaiite | BaV4+2V3+12(SiO4)2O19 |
| 9.AG.90 | Tranquillityite | (Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12 |
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 Vuagnatite
mindat.org URL:
https://www.mindat.org/min-4212.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 Vuagnatite
Reference List:
Localities for Vuagnatite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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 | |
| TasĂĄryovĂĄ et al. (2014) |
Greece | |
| Hatzipanagiotou et al. (2003) |
| Hatzipanagiotou et al. (2003) | |
| Pelletier et al. (2008) | |
Japan | |
| Yamada (2004) |
| Mineralogical Journal Vol. 13 (1986) |
| rruff.geo.arizona.edu (n.d.) |
| Yamada (2004) | |
Kazakhstan | |
| Pilitsyna et al. (2018) |
New Zealand | |
| Craw et al. (Note) +1 other reference |
| rruff.geo.arizona.edu (n.d.) +1 other reference |
Poland | |
| Szuszkiewicz et al. (2013) |
South Africa | |
| Cairncross et al. (1995) |
Turkey (TL) | |
| American Mineralogist |
| American Mineralogist: 63: 1282 | |
USA | |
| Pabst (1977) |
| a New Occurrence. Mineralogical Magazine +2 other references |
| Pabst (1977) | |
| Van Nostrand Reinholt Press: 479. +2 other references |
Quick NavTopAbout VuagnatiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystallographic forms Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Copper King Mine, Red Mountain, Red Mountain Mining District, Mendocino County, California, USA