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| physical object > natural object > particle > element > column grouped element > transition metal > iridium | 
| iridium comparison table | |||||
| Subject | has occurrence | is a kind of | has group | has image | has definition | 
|---|---|---|---|---|---|
| siderophile element | in planet metallic core and associated with iron | planetary element | element that tend to concentrate in metallic iron | ||
| transition metal | column grouped element | a column number in the table of the elements | |||
| iridium | in planet metallic core and associated with iron | siderophile element | a column number in the table of the elements | ![]()  | 
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