Bismutoferrite (original) (raw)
A valid IMA mineral species - grandfathered
About BismutoferriteHide
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Formula:
Fe3+2Bi(SiO4)2(OH)
Crystal System:
Monoclinic
Name:
Named in allusion to its composition, containing BISMUTh and iron, (Latin = FERRum).
The bismuth analogue of Chapmanite with which it is easily confused.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:667:5
84775801-01a7-4236-b125-9274b106cadd
IMA Classification of BismutoferriteHide
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Approved, 'Grandfathered' (first described prior to 1959)
Classification of BismutoferriteHide
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9.ED.25
9 : SILICATES (Germanates)
E : Phyllosilicates
D : Phyllosilicates with kaolinite layers composed of tetrahedral and octahedral nets
71.1.3.1
71 : PHYLLOSILICATES Sheets of Six-Membered Rings
1 : Sheets of 6-membered rings with 1:1 layers
14.14.8
14 : Silicates not Containing Aluminum
14 : Silicates of V and Bi
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Bif | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of BismutoferriteHide
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Density:
4.47 g/cm3 (Measured) 5.09 g/cm3 (Calculated)
Optical Data of BismutoferriteHide
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RI values:
_n_α = 1.930 _n_β = 1.970 _n_γ = 2.010
δ = 0.080
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Chemistry of BismutoferriteHide
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Mindat Formula:
Fe3+2Bi(SiO4)2(OH)
Crystallography of BismutoferriteHide
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Crystal System:
Monoclinic
Cell Parameters:
a = 5.21 Å, b = 9.02 Å, c = 7.74 Å
β = 100.67°
Ratio:
a:b:c = 0.578 : 1 : 0.858
Unit Cell V:
357.45 ų (Calculated from Unit Cell)
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0015576 | Bismutoferrite | Zhukhlistov A P, Zvyagin B B (1977) Determination of the crystal structures of chapmanite and bismuthoferrite by high-voltage electron diffraction Soviet Physics Crystallography 22 419-423 | 1977 | Schneeberg, Saxony, Germany | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.63 Å | (100) |
| 3.87 Å | (100) |
| 2.90 Å | (70) |
| 3.18 Å | (50) |
| 3.58 Å | (35) |
| 2.59 Å | (35) |
| 2.53 Å | (25) |
Comments:
Schneeberg, Germany. Data from Milton et al. (1958). Similar to that of chapmanite.
Geological EnvironmentHide
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Type Occurrence of BismutoferriteHide
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Place of Conservation of Type Material:
No designated type material.
Synonyms of BismutoferriteHide
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Other Language Names for BismutoferriteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 9.ED. | Clinochrysotile | Mon. 2/m | |
|---|---|---|---|
| 9.ED.05 | Dickite | Al2(Si2O5)(OH)4 | Mon. m : B b |
| 9.ED.05 | Kaolinite | Al2(Si2O5)(OH)4 | Tric. 1 : _P_1 |
| 9.ED.05 | Nacrite | Al2(Si2O5)(OH)4 | Mon. m : B b |
| 9.ED.05 | Odinite | (Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4 | Mon. m : B m |
| 9.ED.10 | Halloysite | Al2(Si2O5)(OH)4 | Mon. m : B b |
| 9.ED.10 | Hisingerite | Fe3+2(Si2O5)(OH)4 · 2H2O | Mon. |
| 9.ED.10 | Hydrohalloysite | Al2Si2O5(OH)4 · 2H2O | Mon. m |
| 9.ED.15 | Amesite | Mg2Al(AlSiO5)(OH)4 | Tric. 1 : _P_1 |
| 9.ED.15 | Antigorite | Mg3(Si2O5)(OH)4 | Mon. m : B m |
| 9.ED.15 | Berthierine | (Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4 | Mon. m : B m |
| 9.ED.15 | Brindleyite | (Ni,Al)3(Si,Al)2O5(OH)4 | Mon. |
| 9.ED.15 | Caryopilite | Mn2+3Si2O5(OH)4 | Mon. |
| 9.ED.15 | Cronstedtite | Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4 | Trig. 3_m_ : P_31_m |
| 9.ED.15 | Fraipontite | (Zn,Al)3((Si,Al)2O5)(OH)4 | Mon. |
| 9.ED.15 | Greenalite | (Fe2+,Fe3+)2-3Si2O5(OH)4 | Mon. |
| 9.ED.15 | Kellyite | Mn2+2Al(AlSiO5)(OH)4 | Hex. 6 : _P_63 |
| 9.ED.15 | Lizardite | Mg3(Si2O5)(OH)4 | Trig. 3_m_ : P_31_m |
| 9.ED.15 | Manandonite | Li2Al4(Si2AlB)O10(OH)8 | Orth. 222 : _C_2221 |
| 9.ED.15 | Népouite | Ni3Si2O5(OH)4 | Orth. |
| 9.ED.15 | Pecoraite | Ni3(Si2O5)(OH)4 | Mon. |
| 9.ED.15 | Guidottiite | Mn2Fe3+(Fe3+SiO5)(OH)4 | Hex. 6 : _P_63 |
| 9.ED.15 va | Chromoamesite | Mg2(Al,Cr)(AlSiO5)(OH)4 | |
| 9.ED.20 | Allophane | (Al2O3)(SiO2)1.3-2 · 2.5-3H2O | Amor. |
| 9.ED.20 | Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 | Orth. |
| 9.ED.20 | Imogolite | Al2SiO3(OH)4 | |
| 9.ED.20 | Neotocite | (Mn,Fe)SiO3 · H2O (?) | Amor. |
| 9.ED.25 | Chapmanite | Fe3+2Sb3+(Si2O5)O3(OH) | Mon. m : B m |
| 9.ED.30 | Pianlinite | Al2Si2O6(OH)2 | Orth. |
Other InformationHide
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Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for BismutoferriteHide
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References for BismutoferriteHide
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Localities for BismutoferriteHide
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This 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.
Locality ListHide
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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 
- Good crystals or important locality for species. 
- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.