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Cadmoindite

Big Photo

Kudriavy (Kudryavyi) volcano, Iturup Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern Region, Russia
© Rick Turner, 2009

Formula:
CdIn
 
2
S
 
4
System:IsometricColour:black- brown
Name:for the composition


Thiospinel Group

Classification of Cadmoindite

IMA status:Approved 2003
Strunz 8th edition ID:2/D.01-95
Nickel-Strunz 10th (pending) edition ID:2.DA.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
A : M:S = 3:4
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Type Occurrence of Cadmoindite

Type Locality:Kudriavy (Kudryavyi) volcano, Iturup Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern Region, Russia
Geological Setting of type material:Cadmoindite occurs around the vent of a high-temperature (450–600°C) fumarole.

Physical Properties of Cadmoindite

Lustre:Adamantine
Diaphaneity (Transparency):Translucent
Colour:black- brown
Hardness (Vickers):VHN20=206 kg/mm2

Crystallography of Cadmoindite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Fd3m {F41/d 3 2/m}
Cell Parameters:a = 10.81Å
Unit Cell Volume:V 1263.21 ų
Z:8
Morphology:octahedral
X-Ray Powder Diffraction:
d-spacingIntensity
3.87 (4)
3.27 (10)
2.70 (6)
2.07 (8)
1.91 (9)
1.41 (6)
1.246 (7)
1.107 (9)

Optical Data of Cadmoindite

Type:Isotropic
Reflectivity:
470 nmR=23.9%
546 nmR=21.6%
589 nmR=20.8%
650 nmR=20.2%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 23.9%.
Colour in reflected light:grey
Internal Reflections:brown-red

Chemical Properties of Cadmoindite

Formula:
CdIn
 
2
S
 
4
All elements listed in formula:Cd, In, S

Relationship of Cadmoindite to other Species

Member of Group:
Thiospinel Group:
AB
 
2
X
 
4
Related Minerals - Nickel-Strunz Grouping):

- +
2.DA.05Bornhardtite
Co
2+
 
Co
3+
2
Se
 
4
2.DA.05Carrollite
Cu(Co,Ni)
 
2
S
 
4
2.DA.05Cuproiridsite
(Cu,Fe)Ir
 
2
S
 
4
2.DA.05Cuprorhodsite
(Cu,Fe)Rh
 
2
S
 
4
2.DA.05Daubréelite
Fe
2+
 
Cr
3+
2
S
 
4
2.DA.05Fletcherite
Cu(Ni,Co)
 
2
S
 
4
2.DA.05Florensovite
(Cu,Zn)Cr
 
1.5
Sb
 
0.5
S
 
4
2.DA.05Greigite
Fe
2+
 
Fe
3+
2
S
 
4
2.DA.05Indite
FeIn
 
2
S
 
4
2.DA.05Kalininite
ZnCr
 
2
S
 
4
2.DA.05Linnaeite
Co
2+
 
Co
3+
2
S
 
4
2.DA.05Malanite
Cu(Pt
3+
 
,Ir
3+
 
)
 
2
S
 
4
2.DA.05Polydymite
Ni
2+
 
Ni
3+
2
S
 
4
2.DA.05Siegenite
from CoNi
 
2
S
 
4
 to NiCo
 
2
S
 
4
2.DA.05Trüstedtite
Ni
 
3
Se
 
4
2.DA.05Tyrrellite
Cu(Co
3+
 
,Ni
3+
 
)
 
2
Se
 
4
2.DA.05Violarite
Fe
2+
 
Ni
3+
2
S
 
4
2.DA.05Xingzhongite
(Pb,Cu,Fe)(Ir,Pt,Rh)
 
2
S
 
4
2.DA.05Ferrorhodsite
(Fe,Cu)(Rh,Ir,Pt)
 
2
S
 
4
2.DA.10Rhodostannite
Cu
 
2
FeSn
 
3
S
 
8
2.DA.10Toyohaite
Ag
 
2
FeSn
 
3
S
 
8
2.DA.15Brezinaite
Cr
 
3
S
 
4
2.DA.15Heideite
(Fe,Cr)
 
1.15
(Ti,Fe)
 
2
S
 
4
2.DA.20Inaglyite
Cu
 
3
Pb(Ir,Pt)
 
8
S
 
16
2.DA.20Konderite
Cu
 
3
Pb(Rh,Pt,Ir)
 
8
S
 
16
2.DA.25Kingstonite
(Rh,Ir,Pt)
 
3
S
 
4

Other Names for Cadmoindite

Synonyms:
IMA2003-042
Other Languages:
Russian:Кадмоиндит

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 Cadmoindite

Reference List:Proceedings of the Russian Mineralogical Society, 133(4), 2004, pp 21–27

Internet Links for Cadmoindite

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    Localities for Cadmoindite

    (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.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Hradec Králové Region
        • Trutnov (Trautenau)
          • Radvanice
    		Sejkora J., Berlepsch P., Makovicky E. and Balić-Zunić T. 2001: Natural SnGeS3 from Radvanice near Trutnov (Czech Republic): its description, crystal structure refinement and solid solution with PbSnS3. Eur. J. Mineral., 13, 791-800.
    Russia
     
    • Far-Eastern Region
      • Sakhalinskaya Oblast'
        • Kuril Islands
          • Iturup Island
    		http://maurice.strahlen.org/kurilles/kurilles.htm
    Mineral and/or Locality
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