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Burtite

Formula:
Ca[Sn(OH)
 
6
]
System:IsometricHardness:3
Name:Named after D. M. Burt


Schoenfliesite Group.

Classification of Burtite

IMA status:Approved 1980
Strunz 8th edition ID:4/F.16-20
Nickel-Strunz 10th (pending) edition ID:4.FC.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
C : Hydroxides with OH, without H2O; corner-sharing octahedra
Dana 8th edition ID:6.3.6.5

6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
3 : X(OH)3
Hey's CIM Ref.:7.11.5

7 : Oxides and Hydroxides
11 : Oxides of Sn and Pb
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Type Occurrence of Burtite

Type Locality:Beht River, El Hammam (El Hamman), Ouarzazate Province, Souss-Massa-Draâ Region, Morocco
Year of Discovery:1981

Physical Properties of Burtite

Hardness (Mohs):3

Crystallography of Burtite

Crystal System:Isometric
Cell Parameters:a = 8.12Å
Unit Cell Volume:V 535.39 ų (Calculated from Unit Cell)

Optical Data of Burtite

Type:Isotropic (+/-)
RI values: nα = 1.630 nβ = 1.633
Maximum Birefringence:δ = 1.630 - Isotropic minerals have no birefringence
Surface Relief:Moderate

Chemical Properties of Burtite

Formula:
Ca[Sn(OH)
 
6
]
Essential elements:Ca, H, O, Sn
All elements listed in formula:Ca, H, O, Sn

Relationship of Burtite to other Species

Related to:
  • Schoenfliesite Group
    • Related Minerals - Nickel-Strunz Grouping):
    4.FC.05Bernalite
    Fe(OH)
     
    3
    		 · nH
     
    2
    		O (n = 0.0 to 0.25)
    4.FC.05Dzhalindite
    In(OH)
     
    3
    4.FC.05Söhngeite
    Ga(OH)
     
    3
    4.FC.10Mushistonite
    (Cu,Zn,Fe
    2+
     
    		)[Sn(OH)
     
    6
    		]
    4.FC.10Natanite
    Fe
    2+
     
    		[Sn(OH)
     
    6
    		]
    4.FC.10Schoenfliesite
    Mg[Sn(OH)
     
    6
    		]
    4.FC.10Vismirnovite
    Zn[Sn(OH)
     
    6
    		]
    4.FC.10Wickmanite
    Mn
    2+
     
    		[Sn(OH)
     
    6
    		]
    4.FC.15Jeanbandyite
    (Fe
    2+
     
    		,Mn
    2+
     
    		)[Sn
    4+
     
    		(OH)
     
    6
    		]
    4.FC.15Mopungite
    Na[Sb
    5+
     
    		(OH)
     
    6
    		]
    4.FC.15Stottite
    Fe
    2+
     
    		[Ge
    4+
     
    		(OH)
     
    6
    		]
    4.FC.15Tetrawickmanite
    Mn
    2+
     
    		[Sn
    4+
     
    		(OH)
     
    6
    		]
    4.FC.20Ferronigerite-2N1S
    Sn(Fe,Mg)Al
     
    6
    		O
     
    11
    		(OH)
    4.FC.20Magnesionigerite-6N6S
    Sn(Mg,Fe)
     
    2
    		Al
     
    8
    		O
     
    15
    		(OH)
    4.FC.20Magnesionigerite-2N1S
    Sn(Mg,Fe)Al
     
    6
    		O
     
    11
    		(OH)
    4.FC.20Ferronigerite-6N6S
    Sn(Fe,Mg)
     
    2
    		Al
     
    8
    		O
     
    15
    		(OH)
    4.FC.20Zinconigerite-2N1S
    Sn(Zn,Fe,Mg)Al
     
    6
    		O
     
    11
    		(OH)
    4.FC.20Zinconigerite-6N6S
    4.FC.25Magnesiotaaffeite-6N’3S
    (Mg,Fe,Zn)
     
    2
    		Al
     
    6
    		BeO
     
    12
    4.FC.25Magnesiotaaffeite-2N’2S
    Mg
     
    3
    		Al
     
    8
    		BeO
     
    16
    Related Minerals - Hey's Index Grouping:
    7.11.1Romarchite
    SnO
    7.11.2Cassiterite
    SnO
     
    2
    7.11.4Schoenfliesite
    Mg[Sn(OH)
     
    6
    		]
    7.11.6Vismirnovite
    Zn[Sn(OH)
     
    6
    		]
    7.11.7Wickmanite
    Mn
    2+
     
    		[Sn(OH)
     
    6
    		]
    7.11.8Tetrawickmanite
    Mn
    2+
     
    		[Sn
    4+
     
    		(OH)
     
    6
    		]
    7.11.9Jeanbandyite
    (Fe
    2+
     
    		,Mn
    2+
     
    		)[Sn
    4+
     
    		(OH)
     
    6
    		]
    7.11.10Natanite
    Fe
    2+
     
    		[Sn(OH)
     
    6
    		]
    7.11.11Mushistonite
    (Cu,Zn,Fe
    2+
     
    		)[Sn(OH)
     
    6
    		]
    7.11.12Ferronigerite-2N1S
    Sn(Fe,Mg)Al
     
    6
    		O
     
    11
    		(OH)
    7.11.13Magnesionigerite
    7.11.14Argutite
    GeO
     
    2
    7.11.15Brunogeierite
    (Ge,Fe)Fe
     
    2
    		O
     
    4
    7.11.16Stottite
    Fe
    2+
     
    		[Ge
    4+
     
    		(OH)
     
    6
    		]
    7.11.17Carboirite
    FeAl
     
    2
    		GeO
     
    5
    		(OH)
     
    2
    7.11.18Otjisumeite
    PbGe
     
    4
    		O
     
    9
    7.11.19Bartelkeite
    PbFe
    2+
     
    		Ge
     
    3
    		O
     
    8
    7.11.20Massicot
    PbO
    7.11.21Litharge
    PbO
    7.11.22Minium
    Pb
     
    3
    		O
     
    4
    7.11.23Plattnerite
    PbO
     
    2
    7.11.24Scrutinyite
    alpha-PbO
     
    2
    7.11.25Murdochite
    PbCu
     
    6
    		O
     
    8-x
    		(Cl,Br)
     
    2x
    		 x<=0.5
    7.11.26Macedonite
    PbTiO
     
    3
    7.11.27Cesàrolite
    PbH
     
    2
    		Mn
     
    3
    		O
     
    8
    7.11.28Coronadite
    Pb(Mn,Mn)
     
    8
    		O
     
    16
    7.11.29Quenselite
    PbMnO
     
    2
    		(OH)
    7.11.30Plumboferrite
    PbFe
     
    4
    		O
     
    7
    7.11.31Magnetoplumbite
    (Pb,Mn)(Fe,Mn)
     
    12
    		O
     
    19
    7.11.32Senaite
    Pb(Ti,Fe,Mn)
     
    21
    		O
     
    38

    Other Names for Burtite

    Synonyms:
    IMA1980-078
    German names:
    Burtit
    Russian names:
    Буртит
    Spanish names:
    Burtita

    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 Burtite

    Reference List:Sonnet, P. M. (1981): Burtite, calcium hexahydroxostannate, a new mineral from El Hamman, central Morocco. Canadian Mineralogist, 19, 397-401.

    American Mineralogist: 67: 854.

    Internet Links for Burtite

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

    (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.
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • El Hammam (El Hamman)
    		No reference listed
    Russia
     
    • Far-Eastern Region
      • Primorskiy Kray
        • Dal'negorsk (Dalnegorsk)
          • Kavalerovo Mining District
    		N.V., Gorelikova analytical data
    Mineral and/or Locality
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