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Bismutoferrite

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Schneeberg District, Erzgebirge, Saxony, Germany
© Thomas Witzke

Show Bismutoferrite Photos (5)
Formula:
Fe
3+
2
Bi[OH|(SiO
 
4
)
 
2
]
System:MonoclinicHardness:6


The bismuth analogue of Chapmanite, with which it is easily confused.

Classification of Bismutoferrite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/B.06-20
Nickel-Strunz 10th (pending) edition ID:9.ED.25

9 : SILICATES (Germanates)
E : Phyllosilicates
D : Phyllosilicates with kaolinite layers composed of tetrahedral and octahedral nets
Dana 8th edition ID:71.1.3.1

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
1 : Sheets of 6-membered rings with 1:1 layers
Hey's CIM Ref.:14.14.8

14 : Silicates not Containing Aluminum
14 : Silicates of V and Bi
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Type Occurrence of Bismutoferrite

Type Locality:Schneeberg District, Erzgebirge, Saxony, Germany
Year of Discovery:1871

Physical Properties of Bismutoferrite

Hardness (Mohs):6

Crystallography of Bismutoferrite

Crystal System:Monoclinic
Cell Parameters:a = 5.21Å, b = 9.02Å, c = 7.74Å
β = 100.67°
Ratio:a:b:c = 0.578 : 1 : 0.858
Unit Cell Volume:V 357.45 ų (Calculated from Unit Cell)

Optical Data of Bismutoferrite

Type:Biaxial
RI values: nα = 1.930 nβ = 1.970 nγ = 2.010
Maximum Birefringence:δ = 0.080

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r > v strong

Chemical Properties of Bismutoferrite

Formula:
Fe
3+
2
Bi[OH|(SiO
 
4
)
 
2
]
Essential elements:Bi, Fe, H, O, Si
All elements listed in formula:Bi, Fe, H, O, Si
Common Impurities:Al,As

Relationship of Bismutoferrite to other Species

Related Minerals - Nickel-Strunz Grouping):
9.ED.05Dickite
Al
 
2
Si
 
2
O
 
5
(OH)
 
4
9.ED.05Kaolinite
Al
 
2
Si
 
2
O
 
5
(OH)
 
4
9.ED.05Nacrite
Al
 
2
Si
 
2
O
 
5
(OH)
 
4
9.ED.05Odinite
(Fe,Mg,Al,Fe,Ti,Mn)
 
2.4
(Si,Al)
 
2
O
 
5
(OH)
 
4
9.ED.10Halloysite
Al
 
2
Si
 
2
O
 
5
(OH)
 
4
9.ED.10Hisingerite
Fe
3+
2
Si
 
2
O
 
5
(OH)
 
4
·2H
 
2
O
9.ED.10Halloysite-7Å
Al
 
2
Si
 
2
O
 
5
(OH)
 
4
9.ED.10Halloysite-10Å
Al
 
2
Si
 
2
O
 
5
(OH)
 
4
·2H
 
2
O
9.ED.15Amesite
Mg
 
2
Al[(OH)
 
4
|AlSiO
 
5
]
9.ED.15Antigorite
(Mg,Fe
2+
 
)
 
3
[(OH)
 
4
|Si
 
2
O
 
5
]
9.ED.15Berthierine
(Fe,Fe,Mg)
 
2-3
(Si,Al)
 
2
O
 
5
(OH)
 
4
9.ED.15Brindleyite
(Ni,Mg,Fe)
 
2
Al(Si,Al)O
 
5
(OH)
 
4
9.ED.15Caryopilite
(Mn,Mg)
 
3
Si
 
2
O
 
5
(OH)
 
4
9.ED.15Chrysotile
Mg
 
3
Si
 
2
O
 
5
(OH)
 
4
9.ED.15Cronstedtite
Fe
2+
2
Fe
3+
 
[(Si,Fe
3+
 
)
 
2
O
 
5
](OH)
 
4
9.ED.15Fraipontite
(Zn,Al)
 
3
[(OH)
 
4
|(Si,Al)
 
2
O
 
5
]
9.ED.15Greenalite
Fe
 
2-3
Si
 
2
O
 
5
(OH)
 
4
9.ED.15Kellyite
Mn
2+
2
Al[(OH)
 
4
|AlSiO
 
5
]
9.ED.15Lizardite
Mg
 
3
[(OH)
 
4
|Si
 
2
O
 
5
]
9.ED.15Manandonite
LiAl
 
4
Si
 
3
BO
 
10
(OH)
 
6
9.ED.15Népouite
(Ni,Mg)
 
3
Si
 
2
O
 
5
(OH)
 
4
9.ED.15Pecoraite
Ni
 
3
[(OH)
 
4
|Si
 
2
O
 
5
]
9.ED.20Allophane
(Al
 
2
O
 
3
)(SiO
 
2
)
 
1.3-2
·2.5-3H
 
2
O
9.ED.20Chrysocolla
(Cu,Al)
 
2
H
 
2
Si
 
2
O
 
5
(OH)
 
4
·nH
 
2
O
9.ED.20Imogolite
Al
 
2
SiO
 
3
(OH)
 
4
9.ED.20Neotocite
(Mn,Fe,Mg)SiO
 
3
·H
 
2
O
9.ED.25Chapmanite
Fe
3+
2
Sb
3+
 
[OH|(SiO
 
4
)
 
2
]
Related Minerals - Hey's Index Grouping:
14.14.1Cavansite
Ca(VO)Si
 
4
O
 
10
·4H
 
2
O
14.14.2Pentagonite
Ca(VO)Si
 
4
O
 
10
·4H
 
2
O
14.14.3Goldmanite
Ca
 
3
(V
3+
 
,Al,Fe
3+
 
)
 
2
[SiO
 
4
]
 
3
14.14.4Haradaite
SrVSi
 
2
O
 
7
14.14.5Saneroite
Na
 
2
(Mn,Mn)
 
10
Si
 
11
VO
 
34
(OH)
 
4
14.14.6Erlianite
(Fe,Mg)
 
4
(Fe,V)
 
2
Si
 
6
O
 
15
(OH,O)
 
8
14.14.7Eulytine
Bi
 
4
[SiO
 
4
]
 
3

Other Names for Bismutoferrite

German names:
Bismutoferrit
Russian names:
Бисмутоферрит
Spanish names:
Bismutoferrita

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 Bismutoferrite

Reference List:American Mineralogist: 43: 656-670.

Soviet Physics – Crystallography: 22: 419-423.

Internet Links for Bismutoferrite

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

    Hide Locality List
    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.
    Australia
     
    • New South Wales
      • Gough Co.
        • Kingsgate
    		Sharpe, J.L., & Williams P.A. (2004) - Secondary bismuth and molybdenum minerals from Kingsgate, New England district of New South Wales.- Australian Journal of Mineralogy, vol.10, n°1.
    Bolivia
     
    • La Paz Department
      • Larecaja Province
        • Sorata
    		[MinRec 32:474]
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Kraslice (Graslitz)
    		Beran, P.: Mineralogie ložiska Cu (Ag, Au, Co) rud Tisová u Kraslic. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1997, roč. 4-5, s. 65-77.
        • Krušné Hory Mts (Erzgebirge)
          • Ostrov
            • Jáchymov (St Joachimsthal)
    		Lapis 2002(7/8), 54
        • Mariánské Lázně (Marienbad)
          • Slavkovský Les Mts
    		Sejkora, J., Srein, V., Ondrus, p. (1994): New data on bismutoferrite and chapmanite from the Bohemian occurrences. Vist.Ces.Geol.Ust., 69(4), 75-78
      • Ústí Region
        • Krušné Hory Mts (Erzgebirge)
          • Klášterec nad Ohří
    		Sejkora, Jiří; Čejka, Jiří (2007), Šreinite from Horní Halže, the Krušné hory Mountains, Czech Republic, a new mineral species, its comparison with asselbornite from Schneeberg, and new data for asselbornite. Neues Jahrbuch für Mineralogie - Abhandlungen, Volume 184(2)197-206.
    France
     
    • Alsace
      • Haut-Rhin
        • Ste Marie-aux-Mines (Markirch)
    		Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
    Germany
     
    • Baden-Württemberg
      • Black Forest
    		K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
        • Bad Rippoldsau
    		K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
        • Gengenbach
          • Haigerach valley
    		Wittern,A. (1995) Mineralien finden im Schwarzwald
        • Schenkenzell
          • Wittichen
            • Burgfelsen
    		No reference listed
            • Heubach Valley
    		No reference listed
    K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		WALENTA, K. (1995): Neue Mineralfunde von der Grube Clara. 6. Folge, 2. Teil. - Lapis 20 (6), 41 und 46-49.
        • Zell am Harmersbach
          • Nordrach
            • Grunern
    		K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
    • Bavaria
      • Franconia
        • Franconian Forest
          • Bad Steben
            • Lichtenberg
              • Lichtenberg Copper Mines
    • Saxony-Anhalt
      • Harz Mts
        • Wernigerode
          • Hasserode
    		Wittern: "Mineralfundorte in Deutschland", 2001
    • Saxony
      • Erzgebirge
    		J. Gröbner und U. Kolitsch (2006): Neufunde aus dem Erzgebirge (II). Mineralien-Welt 17 (3), 22-27.
        • Johanngeorgenstadt
    		Gröbner, J., Grimm, O. & Zienau, H. (2005): Neufunde interessanter Wismut- und Uranmineralien am Schaarschacht, Johanngeorgenstadt, Sachsen. Lapis 30 (6), 44-51; 62.
    Frenzel, 1871
          • Neustädtel
    		Lapis 30(7/8):41-70 (2005)
    Lapis 30(7/8):41-70 (2005)
            • Junge Kalbe Mine
    		Am Min 43 (1958), 656
    Lapis 30(7/8):41-70 (2005)
            • Siebenschlehen Mine (Shaft 10)
    		Lapis 30(7/8):41-70 (2005)
    Th. Witzke collection
            • Weißer Hirsch Mine (Shaft 3)
    		Lapis 30(7/8):41-70 (2005)
    Lapis 30(7/8):41-70 (2005)
          • Wolfgang Maaßen Mine field
    		Lapis 30(7/8):41-70 (2005)
    • Thuringia
      • Vogtland
        • Hirschberg
          • Ullersreuth
    		T. Witzke et al.: Lapis 2001(12), 13-27
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Fukushima Prefecture
          • Soma-gun
    		Matsubara & Miyawaki (2006) Catalogue of Japanese Minerals. (National Science Museum, Tokyo)
    South Africa
     
    • Mpumalanga Province
      • Pilgrim's Rest District
        • Bourke's Luck
    		Minerals of South Africa
    UK
     
    • England
      • Cornwall
        • Callington District
          • Gunnislake Area
    		Weiss, S., Green, D.H., Hooper, J.J. & Elton, N. (2007): Erzgänge und "alpine " klüfte: Die Mineralien des Hingston Quarry, Calstock, Cornwall. LAPIS 32 (11), 13-25
        • St Austell District
          • St Stephen Area
            • St Stephen-in-Brannel
    		No reference listed
      • Cumbria
        • North and Western Region (Cumberland)
          • Southern Fells
            • Waberthwaite
    		[MinRecord 29:164]; BMS Database
    USA
     
    • California
      • Plumas Co.
        • Last Chance District
          • Spring Creek area
    		[MinRecord 29:165]
    • Connecticut
      • Middlesex Co.
        • Portland
    		Rocks & Min. Vol.71, No.3, p.197
    Mineral and/or Locality
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