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Gaidonnayite

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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.
    (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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