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Ianbruceite

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Ste Marie 2010
Formula:
[Zn2(OH)(H2O)(AsO4)](H2O)2
Colour:
Sky blue to very pale blue, white, colourless
Lustre:
Vitreous
Hardness:
1
Specific Gravity:
3.197 (Calculated)
Crystal System:
Monoclinic
Name:
Named for Ian Bruce (born 1 April 1969 at Okehampton, Devon, England), a prime mover in the recent reopening the Tsumeb mine for mineral collecting, who has made significant contributions to the mineral collections of many of the world's major museums through his professional activities.
This page provides mineralogical data about Ianbruceite.


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Classification of IanbruceiteHide

Approved
Approval Year:
2011
8.DA.50

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
A : With small (and occasionally larger) cations
42.6.11.

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq·xH2O

Physical Properties of IanbruceiteHide

Vitreous
Transparency:
Transparent
Colour:
Sky blue to very pale blue, white, colourless
Streak:
white
Hardness:
Tenacity:
Flexible
Cleavage:
Perfect
parallel to (100)
Comment:
deforms plastically
Density:
3.197 g/cm3 (Calculated)

Optical Data of IanbruceiteHide

Type:
Biaxial
RI values:
nα = 1.601(2) nβ = 1.660(2) nγ = 1.662(2)
2V:
Measured: 18° (2), Calculated: 20°
Max Birefringence:
δ = 0.061
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v, weak
Pleochroism:
Non-pleochroic

Chemical Properties of IanbruceiteHide

Formula:
[Zn2(OH)(H2O)(AsO4)](H2O)2
IMA Formula:
Zn2(AsO4)(OH)(H2O) · 2H2O

Crystallography of IanbruceiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P1 21/c 1
Cell Parameters:
a = 11.793(2) Å, b = 9.1138(14) Å, c = 6.8265(10) Å
β = 103.859(9)°
Ratio:
a:b:c = 1.294 : 1 : 0.749
Unit Cell V:
712.35 ų (Calculated from Unit Cell)
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
11.28 (100)
3.755 (9)
3.186 (14)
3.120 (12)
2.947 (16)
2.845 (5)
2.819 (8)
2.682 (8)

Type Occurrence of IanbruceiteHide

General Appearance of Type Material:
thin flakes and tapered platy crystals up to 80 μm long
Place of Conservation of Type Material:
Department of Natural History, Royal Ontario Museum (catalogue number M53150) and holotype crystals are deposited in the collection of the Mineralogical Museum of the University of Hamburg, Grindelallee 48, D-20146 Hamburg, Germany (catalogue number TS 11
Geological Setting of Type Material:
‘Zinc Pocket’ on the 44 level of Tsumeb mine
Associated Minerals at Type Locality:

Synonyms of IanbruceiteHide

Other Language Names for IanbruceiteHide

Related Minerals - Nickel-Strunz GroupingHide

8.DA.05BearsiteBe2(AsO4)(OH) · 4H2OMon.
8.DA.05MoraesiteBe2(PO4)(OH) · 4H2OMon.
8.DA.10RoscheriteCa2Mn2+5Be4(PO4)6(OH)4 · 6H2OMon. 2/m : B2/m
8.DA.10ZanazziiteCa2Mg5Be4(PO4)6(OH)4 · 6H2OMon. 2/m : B2/b
8.DA.10GreifensteiniteCa2Fe2+5Be4(PO4)6(OH)4 · 6H2OMon.
8.DA.10AtencioiteCa2Fe2+3Mg2Be4(PO4)6(OH)4 · 6H2O
8.DA.10RuifrancoiteCa2(◻,Mn)2(Fe3+,Mn,Mg)4Be4(PO4)6(OH)4(OH,H2O)2 · 4H2OMon. 2/m : B2/b
8.DA.10GuimarãesiteCa2Be4Zn5(PO4)6(OH)4 · 6H2OMon. 2/m : B2/b
8.DA.10FootemineiteCa2Mn2+Mn2+2Mn2+2Be4(PO4)6(OH)4 · 6H2OTric. 1 : P1
8.DA.15UraloliteCa2Be4(PO4)3(OH)3 · 5H2OMon.
8.DA.20WeinebeneiteCaBe3(PO4)2(OH)2 · 4H2OMon.
8.DA.25TiptopiteK2(Na,Ca)2Li3Be6(PO4)6(OH)2 · H2OHex.
8.DA.30Veszelyite(Cu,Zn)2Zn(PO4)2 · 2H2OMon. 2/m : P21/b
8.DA.35Kipushite(Cu,Zn)5Zn(PO4)2(OH)6 · H2OMon.
8.DA.35Philipsburgite(Cu,Zn)6(AsO4,PO4)2(OH)6 · H2OMon.
8.DA.40SpenceriteZn4(PO4)2(OH)2 · 3H2OMon. 2/m : P2/b
8.DA.45GlucineCaBe4(PO4)2(OH)4 · 0.5H2O

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

42.6.11.1TiptopiteK2(Na,Ca)2Li3Be6(PO4)6(OH)2 · H2OHex.

Fluorescence of IanbruceiteHide

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 IanbruceiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Gebhard, G. (1999) Tsumeb II. A Unique Mineral Locality. GG Publishing, Grossenseifen, Germany, 328 p. (as Mineral GS17)
Cooper, M.A., Abdu, Y., Ball, N., Back, M., Hawthorne, F.C. and Tait, K. (2011): Ianbruceite, IMA 2011-049. CNMNC Newsletter No. 10, October 2011, page 2560.
Cooper, M.A., Abdu, Y.A., Ball, N.A., Hawthorne, F.C., Back, M.E., Tait, K.T., Schlüter, J., Malcherek, T., Pohl, D., Gebhard, G. (2012): Ianbruceite, ideally [Zn2(OH)(H2O)(AsO4)](H2O)2, a new arsenate mineral from the Tsumeb mine, Otjikoto (Oshikoto) region, Namibia: description and crystal structure. Mineralogical Magazine, 76, 1119-1131.
Neall, T., Leppington, C. M., Green, D., Rumsey, M. S. (2013): The first British occurrences of ianbruceite from the Caldbeck Fells, Cumbria. UK Journal of Mines & Minerals 34, 8-12. [see also http://en.wikipedia.org/wiki/Ianbruceite]
Witzke, T. (2017): Ianbruceit, ein seltenes Zinkarsenat vom Schneeberg, Sachsen, Erzgebirge. Mineralien-Welt 28 (2), 58-60 (in German). [with analytical details]

Internet Links for IanbruceiteHide

Localities for IanbruceiteHide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.
Germany
 
  • Lower Saxony
    • Harz
      • Clausthal-Zellerfeld
        • Bockswies veins
          • Oberschulenberg
Stark, M., Gröbner, J. and Kolitsch, U. (2017): Ianbruceit aus Oberschulenberg im Harz. Lapis 42 (4), 42-43.
  • Saxony
    • Erzgebirge
      • Schneeberg District
        • Neustädtel
          • Bergkappe Mine (Shaft 75)
            • Wildschwein mine
Witzke, T. (2017): Ianbruceit, ein seltenes Zinkarsenat vom Schneeberg, Sachsen, Erzgebirge. Mineralien-Welt 28 (2), 58-60.
Namibia (TL)
 
  • Otjikoto Region (Oshikoto)
    • Tsumeb
Cooper, M.A., Abdu, Y., Ball, N., Back, M., Hawthorne, F.C. and Tait, K. (2011): Ianbruceite, IMA 2011-049. CNMNC Newsletter No. 10, October 2011, page 2560; Cooper, M.A., Abdu, Y.A., Ball, N.A., Hawthorne, F.C., Back, M.E., Tait, K.T., Schlüter, J., Malcherek, T., Pohl, D., Gebhard, G. (2012): Ianbruceite, ideally (H2O)2, a new arsenate mineral from the Tsumeb mine, Otjikoto (Oshikoto) region, Namibia: description and crystal structure. Mineralogical Magazine, 76, 1119-1131.
UK
 
  • England
    • Cumbria
      • Caldbeck Fells
Neall, T., Leppington, C. M., Green, D., Rumsey, M. S. (2013): The First British Occurrences of Ianbruceite from the Caldbeck Fells, Cumbria. UK Journal of Mines & Minerals 34, 8-12.
Neall, T., Leppington, C. M., Green, D., Rumsey, M. S. (2013): The first British occurrences of ianbruceite from the Caldbeck Fells, Cumbria. UK Journal of Mines & Minerals, 34, 8-12.
Neall, T., Leppington, C. M., Green, D., Rumsey, M. S. (2013): The First British Occurrences of Ianbruceite from the Caldbeck Fells, Cumbria. UK Journal of Mines & Minerals 34, 8-12.
Mineral and/or Locality  
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