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Bazirite

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Big Photo

Esquire No. 8 claim (Lander's Gillespite locality), Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
© 2010, JGW

Show Bazirite Photos (3)



Formula:
BaZr(Si
 
3
O
 
9
)
System:HexagonalColour:Colourless
Hardness:6 - 6½
Member of:Benitoite Group
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

Member of:Benitoite Group
Other Members of Group:

- +
Benitoite
BaTi(Si
 
3
O
 
9
)
Pabstite
Ba(Sn,Ti)(Si
 
3
O
 
9
)
Wadeite
K
 
2
Zr(Si
 
3
O
 
9
)
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
CaZr(Si
 
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
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
14.10.19Gittinsite
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
]
14.10.31Komkovite
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 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
  • 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.
    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.
    Mexico
     
    • Baja California (Baja California Norte; BC 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
     
    Tindle, A.G. (2008) Minerals of Britian and Ireland
      • 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-Rush Creek District
          • Rush Creek deposit
            • Big Creek
    		[MinRec 33:161]; Canadian Mineralogist (2001): 39:1053-1058.
    Bob Walstrom, p.c.
            • Rush Creek
    Marek Patus
      • Tulare Co.
        • Exeter area
          • Chickencoop Canyon
    		Mineralogical Record: 34(2): 159-166
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