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Gittinsite

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Kipawa alkaline complex, Les Lacs-du-Témiscamingue, Témiscamingue RCM, Abitibi-Témiscamingue, Québec, Canada
© Knut Eldjarn

Show Gittinsite Photos (10)



Formula:
CaZrSi
 
2
O
 
7
System:Monoclinic
Isostructural with:Thortveitite
This page provides mineralogical data about Gittinsite.

Classification of Gittinsite

IMA status:Approved
Strunz 8th edition ID:8/C.01-15
Nickel-Strunz 10th (pending) edition ID:9.BC.05

9 : SILICATES (Germanates)
B : Sorosilicates
C : Si2O7 groups, without non-tetrahedral anions; cations in octahedral [6] and greater coordination
Dana 8th edition ID:55.2.1a.1

55 : SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
2 : Si2O7 Groups, Generally with no Additional Anions with cations in [6] coordination
Hey's CIM Ref.:14.10.19

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

Type Locality:Kipawa alkaline complex, Les Lacs-du-Témiscamingue, Témiscamingue RCM, Abitibi-Témiscamingue, Québec, Canada
Year of Discovery:1980

Crystallography of Gittinsite

Crystal System:Monoclinic
Cell Parameters:a = 6.87Å, b = 8.76Å, c = 4.69Å
β = 101.74°
Ratio:a:b:c = 0.784 : 1 : 0.535
Unit Cell Volume:V 276.35 ų (Calculated from Unit Cell)

Optical Data of Gittinsite

Type:Biaxial (-)
RI values: nα = 1.720 nβ = 1.736 nγ = 1.738
2V:Measured: 30° , Calculated: 38°
Maximum Birefringence:δ = 0.018

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:relatively strong

Chemical Properties of Gittinsite

Formula:
CaZrSi
 
2
O
 
7
Essential elements:Ca, O, Si, Zr
All elements listed in formula:Ca, O, Si, Zr

Relationship of Gittinsite to other Species

Structurally related to group(s):
Thortveitite Group
REE
 
2
Si
 
2
O
 
7
Related Minerals - Nickel-Strunz Grouping):

- +
9.BC.05Keiviite-(Y)
(Y,Yb)
 
2
[Si
 
2
O
 
7
]
9.BC.05Keiviite-(Yb)
(Yb,Y)
 
2
Si
 
2
O
 
7
9.BC.05Thortveitite
(Sc,Y)
 
2
Si
 
2
O
 
7
9.BC.05Yttrialite-(Y)
(Y,Th)
 
2
Si
 
2
O
 
7
9.BC.10Keldyshite
(Na,H)
 
2
ZrSi
 
2
O
 
7
9.BC.10Khibinskite
K
 
2
ZrSi
 
2
O
 
7
9.BC.10Parakeldyshite
Na
 
2
ZrSi
 
2
O
 
7
9.BC.15Rankinite
Ca
 
3
Si
 
2
O
 
7
9.BC.20Barysilite
Pb
 
8
Mn
2+
 
[Si
 
2
O
 
7
]
 
3
9.BC.25Edgarbaileyite
(Hg-Hg)
 
3
Si
 
2
O
 
7
9.BC.30Kristiansenite
Ca
 
2
ScSn(Si
 
2
O
 
7
)(Si
 
2
O
 
6
OH)
9.BC.35Percleveite-(Ce)
(Ce,La,Nd)
 
2
Si
 
2
O
 
7
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
14.10.7Gaidonnayite
Na
 
2
Zr(Si
 
3
O
 
9
) · 2H
 
2
O
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
14.10.20Calciocatapleiite
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 Gittinsite

Synonyms:
IMA1970-034IMA1979-034
Other Languages:
German:Gittinsit
Russian:Гиттинсит
Spanish:Gittinsita

Other Information

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 Gittinsite

Reference List:

- +
ANSELL, H.G., ROBERTS, A.C., PLANT, A.G. & STURMAN, B.D. (1980): Gittinsite, a new calcium zirconium silicate from the Kipawa agpaitic syenite complex.. Canadian Mineralogist 18, 201-203.
ROELOFSEN-AHL, J.N. & PETERSON, R.C. (1989): Gittinsite: a modification of the thortveitite structure. Canadian Mineralogist 27, 703-708.

Internet Links for Gittinsite

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    • Localities for Gittinsite

    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.
    Canada
     
    • Northwest Territories
      • Mackenzie District
        • Blachford Lake alkaline complex
          • Thor Lake syenite complex
    		Sheard, E.R. (2010); SHEARD, E.R., WILLIAMS-JONES, A.E., HEILIGMANN, M., PEDERSON, C. AND TRUEMAN, D.L. (2012) Controls on the concentration of zirconium, niobium, and the rare earth elements in the Thor Lake rare metal deposit, Northwest Territories, Canada. Economic Geology, 107(1), 81-104.
    • Québec
      • Abitibi-Témiscamingue
        • Témiscamingue RCM
          • Les Lacs-du-Témiscamingue
    		ANSELL, H.G., ROBERTS, A.C., PLANT, A.G. & STURMAN, B.D. (1980): Gittinsite, a new calcium zirconium silicate from the Kipawa agpaitic syenite complex.. Canadian Mineralogist 18, 201-203.
    • Québec & Newfoundland and Labrador
    		Canadian Mineralogist Vol. 34, pp.349-371 (1996); A. Kerr and H. Rafuse (2012) Rare-earth element (REE) geochemistry of the Strange Lake deposits: Implications for resource estimation and metallogenic models. Newfoundland and Labrador Department of Natural Resources Current Research 2012 pp39-60
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Šumperk (Mährisch Schönberg)
          • Ruda nad Moravou
    		Novák M. Gadas P. (2010) ZONED, ANORTHITE- AND GROSSULARITE-BEARING, LEUCOTONALITIC PEGMATITE FROM SERPENTINIZED LHERZOLITE AT RUDA NAD MORAVOU, STARÉ MĚSTO UNIT, CZECH REPUBLIC. Can Miner 48 (3): 629-650.
    Madagascar
     
    • Antsiranana Province
      • Diana Region (Northern Region)
        • Ambanja District
          • Ampasindava Peninsula
    		G. Estrade et al. (2011): HFSE enrichment in a peralkaline granite related skarn, Ampasindava Peninsula, Madagascar.- University of Toulouse, France; presentation given at the University of Tübingen.
    Mongolia
     
    • Gobi Desert
    		Kynicky, J., Chakhmouradian, A.R., Xu, C., Krmicek & Galilova, M. (2011): Distribution aand evolution of zirconium mineralization in peralkaline granites and associated pegmatites of the Khan Bogd Complex, southern Mongolia. Canadian Mineralogist. 49, 947-965.
    • Hovd Aimag (Khovd Aimag)
      • Altai Mts
    		Tsareva G.M., Kartashov P.M., Dubrovinskyi L.S., Kovalenko V.I. (1993) Gittinsite from Western Mongolian rare-metal alkali granites, - Transactions (Doklady) Rus. Ac. Sci., earth sciene section, v.332, №7, p. 37-42 (Engl.)
    U. Kempe, J. Götze, S. Dandar and D. Habermann (1999) Magmatic and Metasomatic Processes During Formation of the Nb-Zr-REE Deposits Khaldzan Buregte and Tsakhir (Mongolian Altai): Indications from a Combined CL-SEM Study. Mineralogical Magazine 63:165-177.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Afrikanda
    		Chakhmouradian A.R., Zaitsev A.N. (2002) Calcite–Amphibole–Clinopyroxene rock from the Afrikanda complex, Kola peninsula, Russia: mineralogy and a possible link to carbonatites. III. Silicate minerals. - Can. Miner., Vol.40, pp. 1347-1374.
    USA
     
    • Alaska
      • Prince of Wales-Outer Ketchikan Borough
        • Ketchikan District
    		The Canadian Mineralogist Vol. 40, pp. 1347-1374 (2002)
    • New Mexico
      • Otero Co.
    		The Canadian Mineralogist Vol. 40, pp. 1347-1374 (2002)
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