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Bonaccordite

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About BonaccorditeHide

Formula:
Ni2Fe3+(BO3)O2
Colour:
Reddish-brown, light grey
Hardness:
7
Crystal System:
Orthorhombic
Member of:
Name:
Named for the type locality at Bon Accord, South Africa.
This page provides mineralogical data about Bonaccordite.


Classification of BonaccorditeHide

Approved
Approval Year:
1974
6.AB.30

6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
24.2.1.4

24 : ANHYDROUS BORATES
2 : A2BO2[XO3]
9.9.1

9 : Borates
9 : Borates of Ni

Physical Properties of BonaccorditeHide

Colour:
Reddish-brown, light grey
Hardness:

Chemical Properties of BonaccorditeHide

Formula:
Ni2Fe3+(BO3)O2
IMA Formula:
Ni2Fe3+O2(BO3)

Crystallography of BonaccorditeHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 9.21 Å, b = 12.22 Å, c = 3 Å
Ratio:
a:b:c = 0.754 : 1 : 0.245
Unit Cell V:
337.64 ų (Calculated from Unit Cell)

Type Occurrence of BonaccorditeHide

Synonyms of BonaccorditeHide

Other Language Names for BonaccorditeHide

Relationship of Bonaccordite to other SpeciesHide

Member of:
Other Members of this group:
Azoproite(Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2Orth.
FredrikssoniteMg2(Mn3+,Fe3+)(BO3)O2Orth.
LudwigiteMg2Fe3+(BO3)O2Orth.
VonseniteFe2+2Fe3+(BO3)O2Orth.

Related Minerals - Nickel-Strunz GroupingHide

6.AB.05HambergiteBe2(BO3)(OH)Orth. mmm (2/m 2/m 2/m) : Pbca
6.AB.10BerboriteBe2(BO3)(OH,F) · H2OTrig.
6.AB.15JeremejeviteAl6(BO3)5(F,OH)3Hex. 6/m : P63/m
6.AB.20Warwickite(Mg,Ti,Fe,Cr,Al)2O(BO3)Orth.
6.AB.20YuanfuliiteMg(Fe3+,Al)O(BO3)Orth.
6.AB.25KarliteMg7(BO3)3(OH,Cl)5Orth.
6.AB.30Azoproite(Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2Orth.
6.AB.30FredrikssoniteMg2(Mn3+,Fe3+)(BO3)O2Orth.
6.AB.30LudwigiteMg2Fe3+(BO3)O2Orth.
6.AB.30VonseniteFe2+2Fe3+(BO3)O2Orth.
6.AB.35Pinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Mon.
6.AB.40BlatteriteSb5+(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32Orth. mmm (2/m 2/m 2/m) : Pnnm
6.AB.40ChestermaniteMg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2Orth.
6.AB.40Orthopinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Orth.
6.AB.40Takéuchiite(Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2Orth.
6.AB.45Hulsite(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2Mon.
6.AB.45Magnesiohulsite(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2Mon.
6.AB.45Aluminomagnesiohulsite(Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2Mon. 2/m
6.AB.50FluoboriteMg3(BO3)(F,OH)3Hex.
6.AB.50HydroxylboriteMg3(BO3)(OH)3Hex. 6/m : P63/m
6.AB.55ShabyniteMg5(BO3)(OH)5(Cl,OH)2 · 4H2OMon.
6.AB.55WightmaniteMg5(BO3)O(OH)5 · 2H2OMon.
6.AB.60GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3Hex.
6.AB.65SakhaiteCa12Mg4(BO3)7(CO3)4(OH)2ClIso. m3m (4/m 3 2/m) : Fd3m
6.AB.70HarkeriteCa12Mg4Al(BO3)3(SiO4)4(CO3)5 · H2OTrig. 3m (3 2/m) : R3m
6.AB.75Pertsevite-(F)Mg2(BO3)(F,OH)Orth. mm2 : Pna21
6.AB.75Pertsevite-(OH)Mg2(BO3)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
6.AB.80JacquesdietrichiteCu2(H2BO3)(OH)3Orth. mmm (2/m 2/m 2/m) : Pmna
6.AB.85PainiteCaZrAl9(BO3)O15Hex.

Related Minerals - Dana Grouping (8th Ed.)Hide

24.2.1.1LudwigiteMg2Fe3+(BO3)O2Orth.
24.2.1.2VonseniteFe2+2Fe3+(BO3)O2Orth.
24.2.1.3Azoproite(Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2Orth.
24.2.1.5ChestermaniteMg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2Orth.
24.2.1.6FredrikssoniteMg2(Mn3+,Fe3+)(BO3)O2Orth.

Other InformationHide

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 BonaccorditeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist: 61: 502.

Internet Links for BonaccorditeHide

Localities for BonaccorditeHide

ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
South Africa (TL)
 
  • Mpumalanga Province
    • Ehlanzeni District
      • Barberton
        • Bon Accord
[Trans.Geol.Soc.S.Afr.(1974) 77, 373; Nickel & Nichols, 1991 - "Mineral Reference Manual, p25]
Mineral and/or Locality  
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