Byströmite
A valid IMA mineral species - grandfathered
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About Byströmite
Formula:
MgSb2O6
Colour:
Bluish-grey
Lustre:
Earthy
Hardness:
7
Specific Gravity:
5.5
Crystal System:
Tetragonal
Member of:
Name:
Named for Anders Byström (1916-1956), Swedish crystal chemist.
Isostructural with:
Name Encoding
ASCII-7:
Bystromite
Unique Identifiers
Mindat ID:
814
Long-form identifier:
mindat:1:1:814:1
IMA Classification of Byströmite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
MgSb5+2O6
First published:
1952
Classification of Byströmite
4.DB.10
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
B : With medium-sized cations; chains of edge-sharing octahedra
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
B : With medium-sized cations; chains of edge-sharing octahedra
Dana 7th ed.:
44.2.1.1
44.2.1.1
44 : ANTIMONATES
2 : AX2O6
44 : ANTIMONATES
2 : AX2O6
24.2.2
24 : Antimonates and Antimonites
2 : Antimonates of Be, Mg, Ca, Zn or Hg
24 : Antimonates and Antimonites
2 : Antimonates of Be, Mg, Ca, Zn or Hg
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Bym | 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 Byströmite
Earthy
Colour:
Bluish-grey
Streak:
Light gray
Hardness:
7 on Mohs scale
Density:
5.5(1) g/cm3 (Measured) 5.8 g/cm3 (Calculated)
Comment:
Measured pure material probably 5.7
Optical Data of Byströmite
Type:
Uniaxial
Chemistry of Byströmite
Mindat Formula:
MgSb2O6
Element Weights:
Elements listed:
Crystallography of Byströmite
Crystal System:
Tetragonal
Class (H-M):
4/mmm(4/m2/m2/m) - Ditetragonal Dipyramidal
Space Group:
P4/nmm
Cell Parameters:
a = 4.68 Å, c = 9.21 Å
Ratio:
a:c = 1 : 1.968
Unit Cell V:
201.72 ų (Calculated from Unit Cell)
Z:
2
Comment:
P4/mnm
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.32 Å | (100) |
| 2.57 Å | (90) |
| 1.73 Å | (90) |
| 4.19 Å | (70) |
| 2.34 Å | (50) |
| 4.63 Å | (40) |
| 2.96 Å | (40) |
| 1.65 Å | (40) |
| 1.48 Å | (40) |
| 1.39 Å | (40) |
| 5.93 Å | (30) |
| 3.09 Å | (30) |
| 2.69 Å | (30) |
| 2.08 Å | (30) |
| 2.04 Å | (30) |
| 1.19 Å | (30) |
| 1.06 Å | (30) |
| 0.894 Å | (30) |
Comments:
El Antimonio, Mexico. Data from the type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Byströmite
General Appearance of Type Material:
Massive. Intimately mixed with stibiconite.
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, number 106194 (type).
Natural History Museum, London, United Kingdom, number BM 1951,300 (cotype).
Natural History Museum, London, United Kingdom, number BM 1951,300 (cotype).
Geological Setting of Type Material:
Oxidation zone.
Associated Minerals at Type Locality:
Synonyms of Byströmite
Other Language Names for Byströmite
Relationship of Byströmite to other Species
Member of:
Other Members of Byströmite Group:
| Ordoñezite | ZnSb2O6 | Tet. 4/mmm(4/m2/m2/m) : P42/mnm |
| Tredouxite | NiSb2O6 | Tet. 4/mmm(4/m2/m2/m) : P42/mnm |
Common Associates
Associations Based on Photo Data:
| 1 photo of Byströmite associated with Stibiconite | Sb3+Sb5+2O6(OH) |
| 1 photo of Byströmite associated with Quartz | SiO2 |
Related Minerals - Strunz-mindat Grouping
| 4.DB. | Tianhongqiite | CrTiO3(OH) |
| 4.DB. | Nioboheftetjernite | ScNbO4 |
| 4.DB. | Huangshanite | Fe3+TaO4 |
| 4.DB. | Nioboixiolite-(Mn2+) | (Nb0.67Mn2+0.33)O2 |
| 4.DB. | Shakhdaraite-(Y) | ScYNb2O8 |
| 4.DB.05 | Varlamoffite | Sn1-xFexO2-x(OH) |
| 4.DB.05 | Argutite | GeO2 |
| 4.DB.05 | Cassiterite | SnO2 |
| 4.DB.05 | Rutile | TiO2 |
| 4.DB.05 | Plattnerite | PbO2 |
| 4.DB.05 | Tripuhyite | Fe3+Sb5+O4 |
| 4.DB.05 | Tugarinovite | MoO2 |
| 4.DB.05 | Pyrolusite | Mn4+O2 |
| 4.DB.10 | Ordoñezite | ZnSb2O6 |
| 4.DB.10 | Tredouxite | NiSb2O6 |
| 4.DB.10 | Tapiolite-(Mn) | Mn2+Ta2O6 |
| 4.DB.10 | Tapiolite-(Fe) | Fe2+Ta2O6 |
| 4.DB.15a | Paramontroseite | V4+O2 |
| 4.DB.15a | Ramsdellite | Mn4+O2 |
| 4.DB.15b | Akhtenskite | ε-Mn4+O2 |
| 4.DB.15c | Nsutite | (Mn4+,Mn2+)(O,OH)2 |
| 4.DB.20 | Scrutinyite | α-PbO2 |
| 4.DB.20 | Nioboixiolite-([]) | (Nb0.8◻0.2)4+O2 |
| 4.DB.25 | Ishikawaite | U4+Fe2+Nb2O8 |
| 4.DB.25 | Yttrocolumbite-(Y) | Y(U4+,Fe2+)Nb2O8 |
| 4.DB.25 | Calciosamarskite | (Ca,U4+)Fe3+(Nb,Ta,Ti)2O8 |
| 4.DB.25 | Samarskite-(Yb) | YbFe3+(Nb,Ta)2O8 |
| 4.DB.25 | Ixiolite-(Sc) | (Ta0.5Sc0.5)O2 |
| 4.DB.25 | Ixiolite-(Fe2+) | (Ta0.67Fe2+0.33)O2 |
| 4.DB.25 | Ixiolite-(Mn2+) | (Ta0.67Mn2+0.33)O2 |
| 4.DB.25 | Nioboixiolite-(Fe2+) | (Nb0.67Fe2+0.33)O2 |
| 4.DB.25 | Srilankite | TiO2 |
| 4.DB.25 | Samarskite-(Y) | YFe3+Nb2O8 |
| 4.DB.25 | Nioboixiolite-(Fe3+) | (Nb0.5Fe3+0.5)O2 |
| 4.DB.30 va | Wolframite Group | |
| 4.DB.30 | Rossovskyite | (Fe3+,Ta)(Nb,Ti)O4 |
| 4.DB.30 | Huanzalaite | MgWO4 |
| 4.DB.30 | Heftetjernite | ScTaO4 |
| 4.DB.30 | Hübnerite | MnWO4 |
| 4.DB.30 | Sanmartinite | (Zn,Fe)WO4 |
| 4.DB.30 | Ferberite | FeWO4 |
| 4.DB.30 | 'Krasnoselskite' | CoWO4 |
| 4.DB.35 | Qitianlingite | (Fe,Mn)2(Nb,Ta)2WO10 |
| 4.DB.35 | Tantalaeschynite-(Ce) | Ce(TiTa)O6 |
| 4.DB.35 | Tantalite-(Mg) | (Mg,Fe2+)(Ta,Nb)2O6 |
| 4.DB.35 | Columbite-(Mn) | Mn2+Nb2O6 |
| 4.DB.35 | Tantalite-(Mn) | Mn2+Ta2O6 |
| 4.DB.35 | Columbite-(Fe) | Fe2+Nb2O6 |
| 4.DB.35 | Columbite-(Mg) | (Mg,Fe,Mn)(Nb,Ta)2O6 |
| 4.DB.35 | Tantalite-(Fe) | Fe2+Ta2O6 |
| 4.DB.40 | Ferrotitanowodginite | Fe2+TiTa2O8 |
| 4.DB.40 | 'Wolframowodginite' | Mn(Mn,Sn,Fe,Ta)(W,Ta,Nb)2O8 |
| 4.DB.40 | Lithiotantite | LiTa3O8 |
| 4.DB.40 | Lithiowodginite | LiTa3O8 |
| 4.DB.40 | Titanowodginite | Mn2+TiTa2O8 |
| 4.DB.40 | Tantalowodginite | (Mn2+0.5◻0.5)TaTa2O8 |
| 4.DB.40 | Wodginite | Mn2+Sn4+Ta2O8 |
| 4.DB.40 | Ferrowodginite | Fe2+Sn4+Ta2O8 |
| 4.DB.45 | Tivanite | V3+TiO3(OH) |
| 4.DB.50 | Carmichaelite | (Ti,Cr,Fe)[O2-x(OH)x] |
| 4.DB.55 | Alumotantite | AlTaO4 |
| 4.DB.60 | Biehlite | ((Sb,As)O)2[MoO4] |
Other Information
Notes:
Dissolves completely in concentrated HCl containing KI as a reducing agent.
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 Byströmite
mindat.org URL:
https://www.mindat.org/min-814.html
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References for Byströmite
Reference List:
Mason, Brian, Vitaliano, Charles J. (1952) Bystromite, magnesium antimonate, a new mineral. American Mineralogist, 37 (1-2) 53-57
Roper, Adam J., Leverett, Peter, Murphy, Timothy D., Williams, Peter A. (2015) Stabilities of byströmite, MgSb2O6, ordoñezite, ZnSb2O6 and rosiaite, PbSb2O6, and their possible roles in limiting antimony mobility in the supergene zone. Mineralogical Magazine, 79 (3) 537-544 doi:10.1180/minmag.2015.079.3.03
Localities for Byströmite
Showing 4 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Germany | |
| Meier (1995) |
Mexico | |
| ... |
| Mason et al. (1952) +1 other reference |
| Mineralogical Society of America - ... |
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La Fortuna Mine, El Antimonio, Caborca Municipality, Sonora, Mexico