Linked from
The 16 pages that link to Platinum group, each with the reason it gives.
PlatinumRelated: Comparisons within this family help explain platinum’s catalytic behavior.
RhodiumRelated: Rhodium shares catalytic and chemical traits with these closely related metals.
Bushveld ComplexRelated: The Bushveld Complex is the leading source of several of these metals.
Group 8 elementRelated: Ruthenium and osmium belong to this economically and chemically defined set.