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Bellingerite

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Chuquicamata Mine, Chuquicamata District, Calama, El Loa Province, Antofagasta Region, Chile
© Knut Eldjarn

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Formula:
Cu
 
3
(IO
 
3
)
 
6
 · 2H
 
2
O
System:TriclinicColour:Green, light green; ...
Hardness:4
Name:After Herman C. Bellinger (1867-1940), metallurgist.
This page provides mineralogical data about Bellingerite.

Classification of Bellingerite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/L.02-20
Nickel-Strunz 10th (pending) edition ID:4.KC.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
K : Iodates: Trigonal [IO3] pyramids (mostly).
C : Iodates without additional anions, with H2O
Dana 7th edition ID:21.1.3.1
Dana 8th edition ID:21.1.3.1

21 : NORMAL IODATES
1 : Miscellaneous
Hey's CIM Ref.:29.2

29 : Iodates
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Type Occurrence of Bellingerite

Type Locality:Chuquicamata Mine, Chuquicamata District, Calama, El Loa Province, Antofagasta Region, Chile
General Appearance of Type Material:Veinlets in altered granitic rock; tiny isolated crystals.
Year of Discovery:1940
Associated Minerals at type locality:
LeightoniteGypsum

Physical Properties of Bellingerite

Colour:Green, light green; light bluish green in transmitted light
Streak:Very light green
Hardness (Mohs):4
Tenacity:Brittle
Fracture:Sub-Conchoidal
Density (measured):4.88 - 4.9 g/cm3
Density (calculated):4.932 g/cm3

Crystallography of Bellingerite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Cell Parameters:a = 7.22Å, b = 7.82Å, c = 7.94Å
α = 105°, β = 96.98°, γ = 92.94°
Ratio:a:b:c = 0.923 : 1 : 1.015
Unit Cell Volume:V 428.21 ų (Calculated from Unit Cell)
Morphology:Crystals prismatic [001] and rather tabular {100}. {100} striated parallel to [001].
Twinning:On {101}. Reentrant angles may, or may not, be present.

Optical Data of Bellingerite

Type:Biaxial (+)
RI values: nα = 1.890 nβ = 1.900 nγ = 1.990
2V:Measured: 50° , Calculated: 40°
Maximum Birefringence:δ = 0.100

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r > v strong
Pleochroism:Visible
Comments:X = Light bluish green
Y = Light bluish green
Z = Blue-green

Chemical Properties of Bellingerite

Formula:
Cu
 
3
(IO
 
3
)
 
6
 · 2H
 
2
O
Essential elements:Cu, H, I, O
All elements listed in formula:Cu, H, I, O

Relationship of Bellingerite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.KC.10Brüggenite
Ca(IO
 
3
)
 
2
 · H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
29.1Salesite
Cu(IO
 
3
)(OH)
29.3Lautarite
Ca(IO
 
3
)
 
2
29.4Brüggenite
Ca(IO
 
3
)
 
2
 · H
 
2
O
29.5Dietzeite
Ca
 
2
(IO
 
3
)
 
2
(CrO
 
4
) · H
 
2
O
29.6Seeligerite
Pb
 
3
(IO
 
3
)OCl
 
3
29.7Schwartzembergite
Pb
 
5
H
 
2
(IO
 
2
)O
 
4
Cl
 
3
29.8Hectorfloresite
Na
 
9
(SO
 
4
)
 
4
(IO
 
3
)

Other Names for Bellingerite

Other Languages:
German:Bellingerit
Russian:Беллинджерит
Spanish:Bellingerita

Other Information

Other Information:Slightly soluble in hot water. Readily soluble in dilute HCl.
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 Bellingerite

Reference List:

- +
Berman and Wolfe (1940) American Mineralogist: 25: 505-512.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 313-315.

Acta Crystallographica: B30: 965-974.

Internet Links for Bellingerite

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Bellingerite details from Handbook of Mineralogy (PDF)
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    • Localities for Bellingerite

    The 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.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Chile
     
    • Antofagasta Region
      • El Loa Province
        • Calama
          • Chuquicamata District
    		American Mineralogist (1940): 25: 505-512; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 315.
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