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Gaidonnayite

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Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada

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Formula:
Na
 
2
Zr(Si
 
3
O
 
9
) · 2H
 
2
O
System:OrthorhombicColour:Colourless, may be pale ...
Hardness:5
Name:Named for Gaibrielle "Gai" Hamburger Donnay (1920-1987), mineralogist and crystallographer at McGill University, Montreal, Canada.
Dimorph of:Catapleiite


The orthorhombic dimorph of Catapleiite.

Classification of Gaidonnayite

IMA status:Approved 1974
Strunz 8th edition ID:8/E.04-30
Nickel-Strunz 10th (pending) edition ID:9.DM.15

9 : SILICATES (Germanates)
D : Inosilicates
M : Inosilicates with 6-periodic single chains
Dana 8th edition ID:59.2.2.3

59 : CYCLOSILICATES Three-Membered Rings
2 : Three-Membered Rings, hydrated
Hey's CIM Ref.:14.10.7

14 : Silicates not Containing Aluminum
10 : Silicates of Zr or Hf
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Type Occurrence of Gaidonnayite

Type Locality:Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
General Appearance of Type Material:Colourless crystals
Year of Discovery:1973

Physical Properties of Gaidonnayite

Lustre:Vitreous, Sub-Vitreous, Waxy
Diaphaneity (Transparency):Transparent
Colour:Colourless, may be pale yellow, pale brown to brown, pale grey, gray green.
Streak:White
Hardness (Mohs):5
Tenacity:Brittle
Cleavage:None Observed
Fracture:Irregular/Uneven
Density (measured):2.67 g/cm3
Density (calculated):2.70 g/cm3

Crystallography of Gaidonnayite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pmna {P2/m 2/n 21/a}
Cell Parameters:a = 11.740Å, b = 12.82oÅ, c = 6.691Å
Ratio:a:b:c = 0.916 : 1 : 0.522
Unit Cell Volume:V 1,007.04 ų (Calculated from Unit Cell)
Z:4
Morphology:Equant to slightly elongated crystals with wedge-like forms. {010}, {120}, {011}, {100}, {001}. Striated || [001].
Twinning:[012] common
Comment:Non-standard setting P21nb
X-Ray Powder Diffraction:
d-spacingIntensity
6.45 (40)
5.90 (80)
5.64 (60)
3.12 (100)
2.95 (70)
2.83 (40)
2.50 (40)
1.90(40)
Comments:26-1387

Optical Data of Gaidonnayite

Type:Biaxial (+)
RI values: nα = 1.570 - 1.575 nβ = 1.590 - 1.593 nγ = 1.596 - 1.605
2V:Measured: 53° to 59°
Birefringence:0.035
Maximum Birefringence:δ = 0.026 - 0.030

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r < v strong
Optical Extinction:parallel
Pleochroism:Non-pleochroic

Chemical Properties of Gaidonnayite

Formula:
Na
 
2
Zr(Si
 
3
O
 
9
) · 2H
 
2
O
Essential elements:H, Na, O, Si, Zr
All elements listed in formula:H, Na, O, Si, Zr
Common Impurities:Ti,Nb,Ca,K

Relationship of Gaidonnayite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DM.05Stokesite
CaSn[Si
 
3
O
 
9
] · 2H
 
2
O
9.DM.10Calciohilairite
CaZr[SiO
 
3
]
 
3
 · 3H
 
2
O
9.DM.10Hilairite
Na
 
2
Zr[SiO
 
3
]
 
3
 · 3H
 
2
O
9.DM.10Komkovite
BaZr[Si
 
3
O
 
9
] · 3H
 
2
O
9.DM.10Sazykinaite-(Y)
Na
 
5
YZr[SiO
 
3
]
 
6
 · 6H
 
2
O
9.DM.10Pyatenkoite-(Y)
Na
 
5
YTi[SiO
 
3
]
 
6
 · 6H
 
2
O
9.DM.15Georgechaoite
NaKZr[Si
 
3
O
 
9
] · 2H
 
2
O
9.DM.20Chkalovite
Na
 
2
BeSi
 
2
O
 
6
9.DM.25Vlasovite
Na
 
2
ZrSi
 
4
O
 
11
9.DM.30Revdite
Na
 
16
Si
 
16
O
 
27
(OH)
 
26
 · 28H
 
2
O
9.DM.35Scheuchzerite
Na(Mn,Mg,Zn)
 
9
[VSi
 
9
O
 
28
(OH)](OH)
 
3
9.DM.40Terskite
Na
 
4
ZrSi
 
6
O
 
16
 · 2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
14.10.1Zircon
ZrSiO
 
4
14.10.2Hafnon
HfSiO
 
4
14.10.3Zektzerite
LiNa(Zr,Ti,Hf)Si
 
6
O
 
15
14.10.4Parakeldyshite
Na
 
2
ZrSi
 
2
O
 
7
14.10.5Vlasovite
Na
 
2
ZrSi
 
4
O
 
11
14.10.6Keldyshite
(Na,H)
 
2
ZrSi
 
2
O
 
7
14.10.8Terskite
Na
 
4
ZrSi
 
6
O
 
16
 · 2H
 
2
O
14.10.9Elpidite
Na
 
2
ZrSi
 
6
O
 
15
 · 3H
 
2
O
14.10.10Hilairite
Na
 
2
Zr[SiO
 
3
]
 
3
 · 3H
 
2
O
14.10.11Petarasite
Na
 
5
Zr
 
2
(Si
 
6
O
 
18
)(Cl,OH) · 2H
 
2
O
14.10.12Khibinskite
K
 
2
ZrSi
 
2
O
 
7
14.10.13Wadeite
K
 
2
Zr(Si
 
3
O
 
9
)
14.10.14Dalyite
K
 
2
ZrSi
 
6
O
 
15
14.10.15Kostylevite
K
 
2
Zr(Si
 
3
O
 
9
) · H
 
2
O
14.10.16Umbite
K
 
2
(Zr,Ti)Si
 
3
O
 
9
 · H
 
2
O
14.10.17Paraumbite
K
 
3
Zr
 
2
H(Si
 
3
O
 
9
)
 
2
 · nH
 
2
O
14.10.18Georgechaoite
NaKZr[Si
 
3
O
 
9
] · 2H
 
2
O
14.10.19Gittinsite
CaZrSi
 
2
O
 
7
14.10.20Calciocatapleiite
CaZr(Si
 
3
O
 
9
) · 2H
 
2
O
14.10.21Calciohilairite
CaZr[SiO
 
3
]
 
3
 · 3H
 
2
O
14.10.22Armstrongite
CaZr[Si
 
6
O
 
15
] · 3H
 
2
O
14.10.23Lemoynite
(Na,K)
 
2
CaZr
 
2
Si
 
10
O
 
26
 · 5H
 
2
O
14.10.24Catapleiite
Na
 
2
Zr(Si
 
3
O
 
9
) · 2H
 
2
O
14.10.25Baghdadite
Ca
 
3
(Zr,Ti)(Si
 
2
O
 
7
)O
 
2
14.10.26Lovozerite
Na
 
2
CaZr(H
 
4
Si
 
6
O
 
18
) · H
 
2
O
14.10.27Låvenite
(Na,Ca)
 
2
(Mn
2+
 
,Fe
2+
 
)(Zr,Ti)(Si
 
2
O
 
7
)(O,OH,F)
 
2
14.10.28Penkvilksite
Na
 
4
Ti
 
2
Si
 
8
O
 
22
 · 4H
 
2
O
14.10.29Darapiosite
KNa
 
2
(Zn,Li)
 
3
(Mn,Zr)
 
2
[Si
 
12
O
 
30
]
14.10.30Bazirite
BaZr(Si
 
3
O
 
9
)
14.10.31Komkovite
BaZr[Si
 
3
O
 
9
] · 3H
 
2
O
14.10.32Zirsinalite
Na
 
6
(Ca,Mn
2+
 
,Fe
2+
 
)Zr(Si
 
6
O
 
18
)
14.10.33Tranquillityite
(Fe
2+
 
,Ca)
 
8
(Zr,Y)
 
2
Ti
 
3
(SiO
 
4
)
 
3
O
 
4

Other Names for Gaidonnayite

Synonyms:
IMA1973-008
Other Languages:
German:Gaidonnayit
Russian:Гейдоннеит
Spanish:Gaidonnayita

Other Information

Fluorescence in UV light:Bright green SW and LW (Mt. St-Hilaire and Norway)
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Gaidonnayite

Reference List:

- +
CHAO, G.Y., and WATKINSON, D.H. (1974) Gaidonnayite, Na2ZrSi3O9•2H2O a new mineral from Mont St. Hilaire, Quebec. Canadian Mineralogist, 12, 316-319.

CHAO, G.Y. (1973) The crystal structure of gaidonnayite, orthorhombic Na2ZrSi3O9•2H2O. Canadian Mineralogist, 12, 143-144. (Abstract)

CHAO, G.Y. (1985) The crystal structure of gaidonnayite Na2ZrSi3O9•2H2O. Canadian Mineralogist, 23, 11-15.

GORDON, S.G. (1924) Minerals obtained in Greenland on the second Academy-Vaux expedition, 1923. Proceedings of the Academy of Natural sciences of Philadelphia, 76, 249-268 [α-catapleiite, kalithompsonite](abstracted in Min. Rec. 5, 115-127.

MANDARINO, J.A., and STURMAN, B.D. (1978) The identity of α-catapleiite and gaidonnayite. Canadian Mineralogist, 16, 195-198.

Internet Links for Gaidonnayite

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    • Localities for Gaidonnayite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Brazil
     
    • Minas Gerais
      • Poços de Caldas plateau
        • Poços de Caldas
    		Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe
    No reference listed
    Canada
     
    • Québec
      • Abitibi-Témiscamingue
        • Témiscamingue RCM
          • Les Lacs-du-Témiscamingue
    		Roberts, A.C. & Bonardi, M. (1983): Potassian gaidonnayite from the Kipawa agpaitic syenite complex, Quebec. Geol. Surv. Can., Pap. 83-1A, 480-482.
      • Montérégie
        • Lajemmerais RCM
          • Varennes & St-Amable
            • Saint-Amable sill
    		Horváth, L., Pfenninger-Horváth, E., Gault, R. A., & Tarassoff, P. (1998): Mineralogy of the Saint-Amable Sill, Varennes and Saint-Amable, Québec. Mineralogical Record, 29: 83-118.
        • Rouville RCM
          • Mont Saint-Hilaire
    		Chao G.Y. (1973), The crystal structure of gaidonnayite, orthorhombic Na2ZrSi3O9 7 2H2O. Canadian Mineralogist: 12: 143-44; Chao, G.Y., Watkinson, D.H. (1974), Gaidonnayite, Na2ZrSi3O9 7 2H2O, a new mineral from Mont St.-Hilaire, Quebec. Canadian Mineralogist: 12: 316-319; Chao, G.Y. (1985), The crystal structure of gaidonnayite 2ZrSi3O9 7 2H2O. Canadian Mineralogist: 23: 11-15.
      • Montréal
    		Canadian Museum of Nature collection
    Greenland
     
    • Kitaa Province (West Greenland)
      • Narsaq
        • Igaliku (Igaliko)
          • Narssârssuk (Narsarsuk)
    Norway
     
    • Telemark
      • Porsgrunn
        • Langesundsfjorden
          • Siktesøya
    		Larsen, A.O. & Raade, G. (1991): Gaidonnayite from the nepheline syenite pegmatite on Siktesøya in the southern part of the Oslo Region, norway. Norsk Geologisk Tidsskrift. 71: 303-306
    • Vestfold
      • Larvik
        • Malerød
    		Larsen, A. O. (ed.) (2010): The Langesundsfjord. History, geology, pegmatites, minerals. Bode Verlag Gmbh, Salzhemmendorf, Germany, 240 p; Andresen, P. (2011): Mineralene fra Midtfjellet larvikittbrudd, Malerød, Larvik. Norsk Bergverksmuseum Skrift. 46: 41-47
    Larsen, A. O. (ed.) (2010): The Langesundsfjord. History, geology, pegmatites, minerals. Bode Verlag Gmbh, Salzhemmendorf, Germany, 240 p
        • Tvedalen
    		Collection of Peter Andresen.;Larsen, A. O. (ed.) (2010): The Langesundsfjord. History, geology, pegmatites, minerals. Bode Verlag Gmbh, Salzhemmendorf, Germany, 240 p
          • Tuften (Tuften 1 Quarry; Tuften 2 Quarry)
    		Collected by Roy Kristiansen August 2009.; Andresen, P. (2013): Gedigent bly og andre spennende mineraler fra en unik pegmatitt i Tvedalen. Norsk Bergverksmuseum Skrifter. 50, 83-87
    Portugal
     
    • Faro District
      • Monchique
        • Monchique
    		- P. ALVES, C. LEAL GOMES (2010). Mineralização Sr-Ba tardia em cavidades de rochas filonianas subsaturadas do Maciço Alcalino de Monchique. CNG 2010 (Braga, Portugal)
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Pekov, I.V. & Podlesnyi, A.S. (2004): Kukisvumchorr Deposit: Mineralogy of Alkaline Pegmatites and Hydrotermalites. Mineralogical Almanac, vol. 7, 140 pages + xxiv photo's pages
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Pekov, I. et al (2003): New Data on Minerals: 38: 20-33.
    www.koeln.netsurf.de/~w.steffens/lovo.htm
    Pekov, I. et al (2003): New Data on Minerals: 38: 20-33.
    USA
     
    • Arkansas
      • Hot Spring Co.
        • Magnet Cove
    		Henry Barwood - unpublished (2010)
      • Pulaski Co.
        • Little Rock
    		Rocks and Minerals, (1988) 63:104-125; Rocks and Minerals, (1989) 64:314-322
    Min News (2000) 16:6 pp 1-5,9
    • New Mexico
      • Otero Co.
        • Cornudas Mts
    		W. Stoll - L. Horváth pers. comm. 2004; Horváth specimen coll. 2012 Feb. XRD & EDS
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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