Cadmium
A valid IMA mineral species - grandfathered
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About Cadmium
Formula:
Cd
Colour:
Tin-white with bluish tint
Lustre:
Metallic
Hardness:
1 - 2
Specific Gravity:
8.65
Crystal System:
Hexagonal
Name:
From the Greek calamine, as element occurs in ores smelted from calamine (smithsonite).
This page provides mineralogical data about Cadmium.
Unique Identifiers
Mindat ID:
842
Long-form identifier:
mindat:1:1:842:4
GUID
(UUID V4):
(UUID V4):
2c135023-a29a-414b-ad55-ad9707eb9a29
IMA Classification of Cadmium
Approved, 'Grandfathered' (first described prior to 1959)
Approval year:
1979
First published:
1979
Classification of Cadmium
1.AB.05
1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
B : Zinc-brass family
1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
B : Zinc-brass family
Dana 7th ed.:
1.1.9.1
1.1.5.2
1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
1.9
1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)
1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Cd | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Cadmium
Metallic
Transparency:
Opaque
Colour:
Tin-white with bluish tint
Hardness:
1 - 2 on Mohs scale
Tenacity:
Malleable
Density:
8.65 g/cm3 (Measured) 8.65 g/cm3 (Calculated)
Comment:
Measured on synthetic material
Chemistry of Cadmium
Mindat Formula:
Cd
Elements listed:
Crystallography of Cadmium
Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mmc
Setting:
P63/mmc
Cell Parameters:
a = 2.979 Å, c = 5.617 Å
Ratio:
a:c = 1 : 1.886
Unit Cell V:
43.17 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Microscopic grains to 0.2mm.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0011167 | Cadmium | Wyckoff R W G (1963) Second edition. Interscience Publishers, New York, New York Hexagonal closest packed, hcp, structure Crystal Structures 1 7-83 | 1963 | 0 | 293 | ||
0012941 | Cadmium | Jette E R, Foote F (1935) Precision determination of lattice constants Journal of Chemical Physics 3 605-616 | 1935 | synthetic | 0 | 298 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.81 Å | (70) |
2.58 Å | (30) |
2.35 Å | (100) |
1.90 Å | (30) |
1.52 Å | (30) |
1.49 Å | (20) |
1.32 Å | (20) |
1.26 Å | (10) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
26 : Hadean detrital minerals | |
High-𝑇 alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) | |
Stage 4b: Highly evolved igneous rocks | >3.0 |
37 : Layered igneous intrusions and related PGE minerals |
Geological Setting:
Heavy mineral concentrates from gabbro, post magmatic activity in mineralized sandstones and dolomites.
Type Occurrence of Cadmium
General Appearance of Type Material:
Flattened grains, max. size 0.2 mm, with smooth surfaces.
Geological Setting of Type Material:
Found as microscopic grains in a heavy concentrate from a river in the Vilyui Drainage Basin, Russia; presumably weathered out of the Ust-Khannin intrusive gabbro.
Associated Minerals at Type Locality:
Reference:
Oleinikov, B.V., Okrugin, A.V., Leskova, N.V. (1979) Native cadmium in traps of the Siberian Platform. Doklady Akademii Nauk SSSR: 248: 1426-1428.
Synonyms of Cadmium
Other Language Names for Cadmium
Afrikaans:Kadmium
Albanian:Kadmiumi
Arabic:كادميوم
Armenian:Կադմիում
Basque:Kadmio
Belarusian:Кадмій
Bengali:ক্যাডমিয়াম
Bosnian:Kadmijum
Catalan:Cadmi
Corsican:Cadmiu
Croatian:Kadmij
Czech:Kadmium
Danish:Cadmium
Dutch:Cadmium
Esperanto:Kadmio
Estonian:Kaadmium
Farsi/Persian:کادمیوم
Finnish:Kadmium
French:Cadmium
Friulian:Cadmi
Galician:Cadmio
Greek:Κάδμιο
Haitian:Kadmyòm
Hebrew:קדמיום
Hindi:काडमियम
Hungarian:Kadmium
Icelandic:Kadmín
Ido:Kadmio
Indonesian:Kadmium
Irish Gaelic:Caidmiam
Italian:Cadmio
Japanese:自然カドミウム
Javanese:Kadmium
Korean:카드뮴
Kurdish (Latin Script):Kadmiyûm
Latin:Cadmium
Latvian:Kadmijs
Lithuanian:Kadmis
Lojban:jinmrkadmu
Low Saxon/Low German:Cadmium
Luxembourgish:Cadmium
Manx:Cadmium
Norwegian:Kadmium
Norwegian (Nynorsk):Kadmium
Occitan:Cadmi
Polish:Kadm
Portuguese:Cádmio
Quechua:Kadmiyu
Romanian:Cadmiu
Russian:Кадмий
Saterland Frisian:Cadmium
Serbian:Кадмијум
Serbo-Croatian:Kadmijum
Sicilian:Cadmiu
Simplified Chinese:自然镉
Slovak:Kadmium
Slovenian:Kadmij
Spanish:Cadmio
Swahili:Cadimi
Swedish:Kadmium
Tamil:காட்மியம்
Thai:แคดเมียม
Turkish:Kadmiyum
Ukrainian:Кадмій
Uzbek (Latin Script):Kadmiy
Vietnamese:Cadmi
Related Minerals - Strunz-mindat Grouping
1.AB. | Magnesium | Mg |
1.AB.05 | Rhenium | Re |
1.AB.05 | Zinc | Zn |
1.AB.05 | Titanium | Ti |
1.AB.10b | Danbaite | CuZn2 |
1.AB.10a | Zhanghengite | CuZn |
1.AB.10a | α-Brass | Cu3Zn |
1.AB.10b | Tongxinite | Cu2Zn |
1.AB.10a | Zinccopperite | Cu7Zn4 (?) |
1.AB.10 | UM2003-03-E:AgAuCuZn | (Cu,Au,Ag)4Zn |
1.AB.10 | UM1980-01-E:CuZn | Cu3Zn |
1.AB.10 | UM1980-02-E:CuZn | Cu4.45Zn |
Other Information
Magnetism:
Diamagnetic
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Cadmium
mindat.org URL:
https://www.mindat.org/min-842.html
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References for Cadmium
Localities for Cadmium
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Kazakhstan | |
| Mineralogical Society of America - ... |
Russia | |
| Zelenski et al. (2020) |
| Anthony et al. (2016) |
| Pekov (1998) |
| Novgorodova M.I. et al (1982) |
USA | |
| Castor et al. (2004) |
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Yana River Basin, Verkhoyansk District, Sakha, Russia