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Aerugite

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Formula:
Ni8.5(AsO4)2As5+O8
Colour:
Dark grass-green, blue-green, pale brown.
Lustre:
Sub-Adamantine, Sub-Vitreous, Resinous
Hardness:
4
Specific Gravity:
5.85
Crystal System:
Monoclinic
Name:
Named by Gilbert-Joseph Adam in 1869 from 'aerugo', which means 'copper rust', alluding to its appearance.
This page provides mineralogical data about Aerugite.


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Classification of AerugiteHide

Approved, 'Grandfathered' (first described prior to 1959)
8.BC.15

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
C : With only medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
41.3.11.

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
3 : (AB)3(XO4)Zq
20.10.7

20 : Arsenates (also arsenates with phosphate, but without other anions)
10 : Arsenates of Co and Ni

Physical Properties of AerugiteHide

Sub-Adamantine, Sub-Vitreous, Resinous
Transparency:
Transparent
Colour:
Dark grass-green, blue-green, pale brown.
Streak:
Pale green, pale blue-green.
Hardness:
Tenacity:
Brittle
Cleavage:
None Observed
Density:
5.85 g/cm3 (Measured)    5.772 g/cm3 (Calculated)

Chemical Properties of AerugiteHide

Formula:
Ni8.5(AsO4)2As5+O8
IMA Formula:
Ni8.5(AsO4)2As5+O8

Crystallography of AerugiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Morphology:
Fine-grained crystalline, massive, as crusts, to 2 mm thick.
Comment:
Formerly reported as isometric.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.19 (60)
5.05 (60)
3.76 (80)
2.86 (60)
2.49 (60)
2.33 (70)
1.06 (100)
1.485 (30)
Comments:
ICDD 18-873

Type Occurrence of AerugiteHide

Place of Conservation of Type Material:
Natural History Museum, London, England, 32590 and 1907,103.
Geological Setting of Type Material:
Oxidised vein in a nickel arsenic deposit.
Associated Minerals at Type Locality:

Other Language Names for AerugiteHide

Dutch:Aerugiet
French:Aerugite
German:Aerugit
Italian:Aerugite
Simplified Chinese:块砷镍矿
Traditional Chinese:塊砷鎳礦

Common AssociatesHide

Associated Minerals Based on Photo Data:
Xanthiosite2 photos of Aerugite associated with Xanthiosite on mindat.org.
Paganoite1 photo of Aerugite associated with Paganoite on mindat.org.
Petewilliamsite1 photo of Aerugite associated with Petewilliamsite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.BC.05AngelelliteFe3+4(AsO4)2O3Tric. 1 : P1
8.BC.10FrondeliteMn2+Fe3+4(PO4)3(OH)5Orth. 2 2 2 : C2 2 21
8.BC.10RockbridgeiteFe2+Fe3+4(PO4)3(OH)5Orth. mmm (2/m 2/m 2/m)
8.BC.10PlimeriteZnFe3+4(PO4)3(OH)5Orth. mmm (2/m 2/m 2/m)

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

20.10.1ErythriteCo3(AsO4)2 · 8H2OMon. 2/m : B2/m
20.10.2CobaltaustiniteCaCo(AsO4)(OH)Orth. 2 2 2 : P21 21 21
20.10.3RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2OMon. 2/m : P21/b
20.10.4β-RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2OTric.
20.10.5WendwilsoniteCa2Mg(AsO4)2 · 2H2OMon. 2/m : P21/b
20.10.6Cobaltkoritnigite(Co,Zn)(HAsO4) · H2OTric. 1 : P1
20.10.8XanthiositeNi3(AsO4)2Mon. 2/m : P21/b
20.10.9AnnabergiteNi3(AsO4)2 · 8H2OMon. 2/m : B2/m
20.10.10SmolyaninoviteCo3Fe3+2(AsO4)4 · 11H2OOrth.
20.10.11NickelaustiniteCaNi(AsO4)(OH)Orth. 2 2 2 : P21 21 21

Fluorescence of AerugiteHide

Not fluorescent

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 AerugiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bergemann C. (1858) Ueber einige Nickelerze.- Journal für praktische Chemie [1] 75, 239-244.
Davis, R.J., Hey, M.H., Kingsbury, A.W.G. (1965) Xanthiosite and Aerugite. Mineralogical Magazine: 35: 72-83.
Mineralogical Abstracts: 42(1): 23.
Fleet, M.E., Barbier, J. (1989) Structure of aerugite (Ni8.5As3O16) and interrelated arsenate and germanate structural series. Acta Crystallographica: B45: 201-205.
Roberts, A.C., Burns, P.C., Gault, R.A., Criddle, A.J., Feinglos, M.N., Stirling, J.A.R. (2001) Paganoite, NiBi3+As5+O5, a new mineral from Johanngeorgenstadt, Saxony, Germany: Description and crystal structure. European Journal of Mineralogy: 13: 167-175.

Internet Links for AerugiteHide

Localities for AerugiteHide

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 (TL)
 
  • Saxony
    • Erzgebirge
      • Johanngeorgenstadt District
[C. Bergemann (1858): Ueber einige Nickelerze.- Journal für praktische Chemie [1] 75, 239-244.; Clark, 1993 - "Hey's Mineral Index, 3rd Edition"]
Thalheim, K. & Kaden, M. (2006): Die Sammlung Sachsen - Interessante Neubestimmungen. Pp. 154-155 in: Lange, J. M. & Kühne, E., Eds. (2006): Das Museum für Mineralogie und Geologie in den Staatlichen Naturhistorischen Sammlungen Dresden. Von der kurfürstlichen Kunstkammer zum staatlichen Forschungsmuseum. Museum für Mineralogie und Geologie, Staatliche Naturhistorische Sammlungen Dresden, Dresden, Germany, 200 pp.
        • Lauta
Hajek, W. (2010): Kristallwelten Marienberg. Weise Verlag, München.
UK
 
  • England
    • Cornwall
      • St Austell District
        • St Stephen-in-Brannel
          • St Stephen
Davis, R.J., Hey, M.H., and Kingsbury, A.W.G. (1965) Xanthiosite and aerugite. Mineralogical Magazine, vol. 35, n° 269, p. 72-83.; Embrey, P.G. (1978) Fourth supplementary list of British Minerals. Mineralogical Magazine, vol. 42, n° 322, p. 169-177. (referring to Kingsbury)
Mineral and/or Locality  
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