Orthopinakiolite
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About Orthopinakiolite
Formula:
(Mg,Mn2+)2Mn3+(BO3)O2
Hardness:
6
Crystal System:
Orthorhombic
Member of:
Dimorph of:
Classification of Orthopinakiolite
Approved
5/G.04-60
6.AB.40
6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
24.2.5.1
24 : ANHYDROUS BORATES
2 : A2BO2[XO3]
24 : ANHYDROUS BORATES
2 : A2BO2[XO3]
9.7.2
9 : Borates
7 : Borates of Mn
9 : Borates
7 : Borates of Mn
Physical Properties of Orthopinakiolite
Hardness:
6 on Mohs scale
Chemical Properties of Orthopinakiolite
Formula:
(Mg,Mn2+)2Mn3+(BO3)O2
IMA Formula:
Mg2Mn3+O2(BO3)
Elements listed:
Crystallography of Orthopinakiolite
Crystal System:
Orthorhombic
Cell Parameters:
a = 18.45 Å, b = 12.7 Å, c = 6.07 Å
Ratio:
a:b:c = 1.453 : 1 : 0.478
Unit Cell V:
1,422.29 ų (Calculated from Unit Cell)
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0005157 | Orthopinakiolite | Takeuchi Y, Haga N, Kato T, Miura Y (1978) Orthopinakiolite, Me2.95O2[BO3]: its crystal structure and relationship to pinakiolite, Me2.90O2[BO3] The Canadian Mineralogist 16 475-485 | ![]() | 1978 | 0 | 293 |
CIF Raw Data - click here to close
Type Occurrence of Orthopinakiolite
Other Language Names for Orthopinakiolite
German:Orthopinakiolit
Spanish:Orthopinakiolita
Relationship of Orthopinakiolite to other Species
Member of:
Other Members of this group:
Blatterite | Sb5+3(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32 | Orth. mmm (2/m 2/m 2/m) : Pnnm |
Chestermanite | Mg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2 | Orth. mmm (2/m 2/m 2/m) |
Takéuchiite | (Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2 | Orth. |
Common Associates
Related Minerals - Nickel-Strunz Grouping
6.AB. | Chubarovite | KZn2(BO3)Cl2 | Trig. 3 2 : R3 2 |
6.AB.05 | Hambergite | Be2(BO3)(OH) | Orth. mmm (2/m 2/m 2/m) : Pbca |
6.AB.10 | Berborite | Be2(BO3)(OH,F) · H2O | Trig. |
6.AB.15 | Jeremejevite | Al6(BO3)5(F,OH)3 | Hex. 6/m : P63/m |
6.AB.20 | Warwickite | (Mg,Ti,Fe,Cr,Al)2O(BO3) | Orth. |
6.AB.20 | Yuanfuliite | Mg(Fe3+,Al)O(BO3) | Orth. |
6.AB.25 | Karlite | Mg7(BO3)3(OH,Cl)5 | Orth. |
6.AB.30 | Azoproite | (Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2 | Orth. |
6.AB.30 | Bonaccordite | Ni2Fe3+(BO3)O2 | Orth. |
6.AB.30 | Fredrikssonite | Mg2(Mn3+,Fe3+)(BO3)O2 | Orth. |
6.AB.30 | Ludwigite | Mg2Fe3+(BO3)O2 | Orth. |
6.AB.30 | Vonsenite | Fe2+2Fe3+(BO3)O2 | Orth. |
6.AB.35 | Pinakiolite | (Mg,Mn2+)2Mn3+(BO3)O2 | Mon. |
6.AB.40 | Blatterite | Sb5+3(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32 | Orth. mmm (2/m 2/m 2/m) : Pnnm |
6.AB.40 | Chestermanite | Mg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2 | Orth. mmm (2/m 2/m 2/m) |
6.AB.40 | Takéuchiite | (Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2 | Orth. |
6.AB.45 | Hulsite | (Fe2+,Mg)2(Fe3+,Sn)(BO3)O2 | Mon. |
6.AB.45 | Magnesiohulsite | (Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2 | Mon. |
6.AB.45 | Aluminomagnesiohulsite | (Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2 | Mon. 2/m |
6.AB.50 | Fluoborite | Mg3(BO3)(F,OH)3 | Hex. |
6.AB.50 | Hydroxylborite | Mg3(BO3)(OH)3 | Hex. 6/m : P63/m |
6.AB.55 | Shabynite | Mg5(BO3)(OH)5(Cl,OH)2 · 4H2O | Mon. |
6.AB.55 | Wightmanite | Mg5(BO3)O(OH)5 · 2H2O | Mon. |
6.AB.60 | Gaudefroyite | Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3 | Hex. |
6.AB.65 | Sakhaite | Ca12Mg4(BO3)7(CO3)4(OH)2Cl | Iso. m3m (4/m 3 2/m) : Fd3m |
6.AB.70 | Harkerite | Ca12Mg4Al(BO3)3(SiO4)4(CO3)5 · H2O | Trig. 3m (3 2/m) : R3m |
6.AB.75 | Pertsevite-(F) | Mg2(BO3)(F,OH) | Orth. mm2 : Pna21 |
6.AB.75 | Pertsevite-(OH) | Mg2(BO3)(OH) | Orth. mmm (2/m 2/m 2/m) : Pnma |
6.AB.80 | Jacquesdietrichite | Cu2(H2BO3)(OH)3 | Orth. mmm (2/m 2/m 2/m) : Pmna |
6.AB.85 | Painite | CaZrAl9(BO3)O15 | Hex. 6/m : P63/m |
Related Minerals - Hey's Chemical Index of Minerals Grouping
9.7.1 | Pinakiolite | (Mg,Mn2+)2Mn3+(BO3)O2 | Mon. |
9.7.3 | Jimboite | (Mn2+,Mg)3[BO3]2 | Orth. |
9.7.4 | Sussexite | Mn2+BO2(OH) | Orth. 2 2 2 : P21 21 2 |
9.7.5 | Wiserite | (Mn2+,Mg)14(B2O5)4(OH)8 · (Si,Mg)(O,OH)4Cl | Tet. |
9.7.6 | Kurchatovite | Ca(Mg,Mn2+)[B2O5] | Orth. |
9.7.7 | Clinokurchatovite | Ca(Mg,Fe2+,Mn2+)[B2O5] | Mon. |
9.7.8 | Takéuchiite | (Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2 | Orth. |
9.7.9 | Blatterite | Sb5+3(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32 | Orth. mmm (2/m 2/m 2/m) : Pnnm |
9.7.10 | Tusionite | Mn2+Sn4+[BO3]2 | Trig. 3 : R3 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Orthopinakiolite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1961): 46: 768.
Canadian Mineralogist (1978): 16: 475-485.
Acta Crystallographica: A37: 28-35.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Internet Links for Orthopinakiolite
mindat.org URL:
https://www.mindat.org/min-3030.html
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Please feel free to link to this page.
External Links:
Mineral Dealers:
Localities for Orthopinakiolite
Locality List




All localities listed without proper references should be considered as questionable.
Sweden (TL) | |
| Arkiv Min.Geol.(1961) 2, 551-555; Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183. |
Långban mine, Långban Ore District, Filipstad, Värmland County, Sweden