Hierarchy of precious substances

In popular culture, sets of precious substances may form hierarchies which express conventional perceived relative value or merit. Precious metals appear prominently in such hierarchies, but as they grow, gems and semi-precious materials may become part of the systems. The sequences can provide interesting examples of the arbitrariness of semiotic signs.

Related Topics:
Popular culture - Value - Merit - Precious metal - Gem - Semiotic signs

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