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Bazirite

Formula:
BaZr[Si
 
3
O
 
9
]
System:HexagonalColour:Colourless
Hardness:6 - 6½
Name:For its chemical composition of BArium and ZIRconium

Classification of Bazirite

IMA status:Approved
Strunz 8th edition ID:8/E.01-30
Nickel-Strunz 10th (pending) edition ID:9.CA.05

9 : SILICATES (Germanates)
C : Cyclosilicates
A : [Si3O9]6- 3-membered single rings (dreier-Einfachringe), without insular complex anions
Dana 8th edition ID:59.1.1.1

59 : CYCLOSILICATES Three-Membered Rings
1 : Three-Membered Rings, anhydrous, no other anions
Hey's CIM Ref.:14.10.30

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

Type Locality:Apex Ridge, Rockall Island, Outer Hebrides, Scotland, UK
Year of Discovery:1975

Physical Properties of Bazirite

Colour:Colourless
Hardness (Mohs):6 - 6½

Crystallography of Bazirite

Crystal System:Hexagonal
Cell Parameters:a = 6.75Å, c = 9.98Å
Ratio:a:c = 1 : 1.479
Unit Cell Volume:V 393.79 ų (Calculated from Unit Cell)

Optical Data of Bazirite

Type:Uniaxial (+)
RI values: nω = 1.675 - 1.681 nε = 1.685 - 1.691
Maximum Birefringence:δ = 0.010

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

Chemical Properties of Bazirite

Formula:
BaZr[Si
 
3
O
 
9
]
Essential elements:Ba, O, Si, Zr
All elements listed in formula:Ba, O, Si, Zr
Common Impurities:Sn

Relationship of Bazirite to other Species

Member of Group:
Benitoite Group:
Related Minerals - Nickel-Strunz Grouping):

- +
9.CA.05Benitoite
BaTi[Si
 
3
O
 
9
]
9.CA.05Pabstite
Ba(Sn,Ti)[Si
 
3
O
 
9
]
9.CA.10Wadeite
K
 
2
Zr[Si
 
3
O
 
9
]
9.CA.15Calciocatapleiite
CaZrSi
 
3
O
 
9
·2H
 
2
O
9.CA.15Catapleiite
Na
 
2
Zr[Si
 
3
O
 
9
]·2H
 
2
O
9.CA.20Pseudowollastonite
CaSiO
 
3
9.CA.25Margarosanite
Pb(Ca,Mn
2+
 
)
 
2
[Si
 
3
O
 
9
]
9.CA.25Walstromite
BaCa
 
2
[Si
 
3
O
 
9
]
9.CA.30Bobtraillite
(Na,Ca)
 
13
Sr
 
11
(Zr,Y,Nb)
 
14
[(Si
 
3
O
 
9
)
 
10
|(H
 
2
BSi
 
2
O
 
9
)
 
6
] · 12H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
14.10.1Zircon
Zr[SiO
 
4
]
14.10.2Hafnon
(Hf,Zr)[SiO
 
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
[(OH,Cl)|Si
 
6
O
 
18
]·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
ZrSi
 
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
CaZr[Si
 
2
O
 
7
]
14.10.20Calciocatapleiite
CaZrSi
 
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)[O
 
2
|Si
 
2
O
 
7
]
14.10.26Lovozerite
Na
 
2
Ca(Zr,Ti)[Si
 
6
O
 
12
(OH,O)
 
6
]*H
 
2
O
14.10.27Låvenite
(Na,Ca)
 
2
(Mn
2+
 
,Fe
2+
 
)(Zr,Ti)[(O,OH,F)
 
2
|Si
 
2
O
 
7
]
14.10.28Penkvilksite
Na
 
4
Ti
 
2
Si
 
8
O
 
22
·4H
 
2
O
14.10.29Darapiosite
KNa
 
2
Li(Mn,Zn)
 
2
ZrSi
 
12
O
 
30
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
[O
 
4
|SiO
 
4
]
 
3

Other Names for Bazirite

Synonyms:
IMA1976-053
Other Languages:
German:Bazirit
Russian:Бацирит
Spanish:Bazirita

Other Information

Fluorescence in UV light:Light blue fluorescence (UV).
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 Bazirite

Reference List:American Mineralogist (1976): 61: 175.

Young, B.R., J.R. Hawkes, R.J. Merriman, and M.T. Styles (1978) Bazirite, BaZrSi3O9; a new mineral from Rockall Island, Inverness-shire, Scotland. Mineralogical Magazine, 42, 35-40.

American Mineralogist (1979): 64: 241 (abstract).

Alfors, J.T. and A. Pabst (1984)
Titanian taramellites in western North America. American Mineralogist, 69, 358-373.

Hawthorne, F.C. (1987) The crystal chemistry of the benitoite group minerals and structural relations in
(Si3O9) ring structures. Neues Jahrbuch für Mineralogie, Monatshefte (1987): 16-30.

Internet Links for Bazirite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Bazirite in the Natural History Museum (London) online catalogue
  • Bazirite details from Handbook of Mineralogy (PDF)
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    Localities for Bazirite

    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.
    Mexico
     
    • Baja California Norte
      • Tres Pozos
    American Mineralogist, Volume 69, pages 358-373, 1984
    Mongolia
     
    • Hovd Aimag (Khovd Aimag)
      • Altai Mts
    P.M. Kartashov data
    Tajikistan
     
    • Region of Republican Subordination
      • Tien Shan Mts
        • Alai (Alayskiy) Range
    http://www.koeln.netsurf.de/~w.steffens/dara.htm
    UK
     
    • Scotland
      • Outer Hebrides
        • Rockall Island
    Bazirite, Ba Zr Si3 O9, a new mineral from Rockall Island, Inverness-shire, Scotland, Mineral. Mag., G.B., 1978, 42, 35-40
    USA
     
    • California
      • Fresno Co.
        • Big Creek
    [MinRec 33:161]
    Bob Walstrom, p.c.
        • Rush Creek
      • Tulare Co.
        • Chickencoop Canyon
    Mineral and/or Locality
    Google
     
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 24th Oct 2009 03:54:33