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Stottite

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Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
© 2004 ROM

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Formula:
Fe
2+
 
[Ge
4+
 
(OH)
 
6
]
System:TetragonalColour:Brown
Lustre:GreasyHardness:4½
Name:Named after Charles E. Stott, Director of the Tsumcor Mine, Tsumeb (Namibia).


Stottite Group

Stottite is iron hexahydroxogermanate, a compound with a Ge(IV) complex anion

Classification of Stottite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/F.17-40
Nickel-Strunz 10th (pending) edition ID:4.FC.15

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:6.3.7.1

6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
3 : X(OH)3
Hey's CIM Ref.:7.11.16

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

Type Locality:Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
Year of Discovery:1958

Physical Properties of Stottite

Lustre:Greasy
Colour:Brown
Hardness (Mohs):4½

Crystallography of Stottite

Crystal System:Tetragonal
Cell Parameters:a = 7.55Å, c = 7.47Å
Ratio:a:c = 1 : 0.989
Unit Cell Volume:V 425.81 ų (Calculated from Unit Cell)

Optical Data of Stottite

Type:Uniaxial (-)
RI values: nω = 1.738 nε = 1.728
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 Stottite

Formula:
Fe
2+
 
[Ge
4+
 
(OH)
 
6
]
Essential elements:Fe, Ge, H, O
All elements listed in formula:Fe, Ge, H, O

Relationship of Stottite to other Species

Related to:
  • Stottite 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.10Burtite
    Ca[Sn(OH)
     
    6
    		]
    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.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
    		]
    7.11.5Burtite
    Ca[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
    7.11.17Carboirite
    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 Stottite

    German names:
    Stottit
    Russian names:
    Стоттит
    Spanish names:
    Stottita

    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 Stottite

    Reference List:Neues Jahrbuch für Mineralogie, Monatshefte (1958): 85-96.

    American Mineralogist (1958): 43: 1006.

    American Mineralogist (1988): 73: 657-661.

    Acta Crystallographica: 14: 205-208.

    Internet Links for Stottite

    Search Engines:
  • Look for Stottite on Google
  • Look for Stottite images on Google
    • External Links:
  • Look for Stottite on Webmineral
  • Look for Stottite on Athena Mineralogy
  • Look for Stottite on Wikipedia
  • Look for Stottite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Stottite in the Natural History Museum (London) online catalogue
  • Stottite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
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  • Fine Minerals from Dan Weinrich Minerals
  • Wright's Rock Shop - excellent mineral specimens since 1970
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  • Search for Stottite at Thames Valley Minerals
  • Buy fine minerals and gemstones from Pala International
  • Wilensky Fine Minerals
  • The Arkenstone - Fine Minerals
  • High-end worldwide specimens & outstanding customer service
  • Buy Fine Minerals from mineralsweb.com
  • Find Stottite on www.crystalclassics.co.uk
  • Fabre Minerals - search for Stottite specimens
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    Localities for Stottite

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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.
    Namibia
     
    • Otjikoto (Oshikoto) Region
      • Tsumeb
    		Neues Jahrb.Min.,Mh.(1958) 85-96
    Mineral and/or Locality
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