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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

Member of Group:
Schoenfliesite Group:
M
2+
 
[Sn
4+
 
(OH)
 
6
]
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
Pb
 
2
Fe
3+
11-x
Mn
2+
x
O
 
19-2x
, x = 1/3
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
Other Languages:
German:Burtit
Russian:Буртит
Spanish: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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    Localities for Burtite

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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.
    (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
     
    • Meknès-Tafilalet Region
      • Meknès Prefecture
        • Meknès
          • Mount Hammam
    		Econ Geol (1989) 84:575-590
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • El Hammam (El Hamman)
    		Ph. M. Sonnet : "Burtite, Calcium Hexahydrostannate, a New Mineral from El Hamman, Central Morocco", Canadian Mineralogist, Vol. 19, 1981, pp. 397-401.
    Russia
     
    • Far-Eastern Region
      • Primorskiy Kray
        • Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche)
          • Karadubsky ore field
    		N.V., Gorelikova analytical data
    Mineral and/or Locality
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