I like the primary/secondary/tertiary forms of wealth breakdown. primary wealth: land, house, clean water, food, raw materials. Secondary wealth: ability to convert primary wealth into useful goods and services: iron to steel products, etc
Tertiary wealth (gold, bitcoin, stocks, bonds) are claims on first and secondary wealth but aren't as useful if you don't have the first two. eg: "Your bitcoin is useless if you're stranded on a deserted island".