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Bazirite

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Esquire No. 8 claim (Lander's Gillespite locality), Big Creek, Fresno Co., California, USA
© 2007, J. Weissman

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


Benitoite Group.

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

Related to:
  • 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,Ca)
     
    3
    		(Zr,Ti)[Si
     
    6
    		(O,OH)
     
    18
    		]
    14.10.27Låvenite
    (Na,Ca)
     
    2
    		(Mn
    2+
     
    		,Fe
    2+
     
    		)(Zr,Ti)[(O,OH,F)
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
    14.10.28Penkvilksite
    (Na,Ca)
     
    4
    		(Ti,Zr)
     
    2
    		Si
     
    8
    		O
     
    22
    		·5H
     
    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.

    Articles/Blogs about Bazirite

    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

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    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.
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    (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.
    Mongolia
     
    • Hovd Aimag (Khovd Aimag)
      • Altai Mts
    		P.M. Kartashov data
    Tajikistan
     
    • Region of Republican Subordination
      • Tien Shan Mts
        • Alayskiy (Alai) 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
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