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Aerugite

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Johanngeorgenstadt, Erzgebirge, Saxony, Germany
© Thomas Witzke

Formula:
Ni
 
8.5
(AsO
 
4
)
 
3
As
5+
 
O
 
8
System:TrigonalColour:grass green, blue-green
Hardness:4
Name:From 'aerugo', which means 'copper rust', alluding to its appearance
This page provides mineralogical data about Aerugite.

Classification of Aerugite

IMA status:Approved
Strunz 8th edition ID:7/B.09-10
Strunz 9th edition ID:8.BC.15
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:38.5.10.1

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
5 : Miscellaneous
Hey's CIM Ref.:20.10.7

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

Type Locality:Johanngeorgenstadt, Erzgebirge, Saxony, Germany
Year of Discovery:1858

Physical Properties of Aerugite

Lustre:Adamantine
Colour:grass green, blue-green
Streak:light green
Hardness (Mohs):4

Crystallography of Aerugite

Crystal System:Trigonal

Chemical Properties of Aerugite

Formula:
Ni
 
8.5
(AsO
 
4
)
 
3
As
5+
 
O
 
8
Essential elements:As, Ni, O
All elements listed in formula:As, Ni, O

Relationship of Aerugite to other Species

Related Minerals - Nickel-Strunz Grouping):
8.BC.05Angelellite
Fe
3+
4
[O
 
3
|(AsO
 
4
)
 
2
]
8.BC.10Frondelite
Mn
2+
 
Fe
3+
4
[(OH)
 
5
|(PO
 
4
)
 
3
]
8.BC.10Rockbridgeite
Fe
2+
 
Fe
3+
4
[(OH)
 
5
|(PO
 
4
)
 
3
]
Related Minerals - Hey's Index Grouping:
20.10.1Erythrite
Co
 
3
(AsO
 
4
)
 
2
·8H
 
2
O
20.10.2Cobaltaustinite
CaCo[OH|AsO
 
4
]
20.10.3Roselite
Ca
 
2
(Co
2+
 
,Mg)[AsO
 
4
]
 
2
 · 2H
 
2
O
20.10.4β-Roselite
Ca
 
2
(Co
2+
 
,Mg)[AsO
 
4
]
 
2
 · 2H
 
2
O
20.10.5Wendwilsonite
Ca
 
2
(Mg,Co
2+
 
)[AsO
 
4
]
 
2
 · 2H
 
2
O
20.10.6Cobaltkoritnigite
(Co,Zn)[HAsO
 
4
] · H
 
2
O
20.10.8Xanthiosite
Ni
 
3
[AsO
 
4
]
 
2
20.10.9Annabergite
Ni
 
3
(AsO
 
4
)
 
2
·8H
 
2
O
20.10.10Smolianinovite
(Co,Ni,Mg,Ca)
 
3
(Fe
3+
 
,Al)
 
2
(AsO
 
4
)
 
4
·11H
 
2
O
20.10.11Nickelaustinite
Ca(Ni,Zn)[OH|AsO
 
4
]

Other Names for Aerugite

German names:
Aerugit
Russian names:
Аеругит
Spanish names:
AerugitaAerugo

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Aerugite

Reference List:Bergemann C. (1858): Ueber einige Nickelerze.- Journal für praktische Chemie [1] 75, 239-244.

American Mineralogist (1965): 50: 2108.

Mineralogical Abstracts: 42(1): 23.

Fleet, M.E. and Barbier, J. (1989) Structure of aerugite (Ni8.5As3O16) and interrelated arsenate and germanate structural series. Acta Crystallographica: B45: 201-205.

Internet Links for Aerugite

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  • Aerugite details from Handbook of Mineralogy (PDF)
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    Localities for Aerugite

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    Germany
     
    • Saxony
      • Erzgebirge
    		[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.
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