Two Partial Lists of Investments

The following partial lists of investments have at least one key, distinct difference between them. Can you identify it?

List 1:

• Stocks (equity ownership - residual claims on assets)
• Bonds (credit lending - contractual claims on assets)
• Real Estate (equity ownership of real, surface property such as your personal home, a home or apartment you rent out, a business building, a REIT, etc.)
• Mineral Estate/Rights (equity ownership of real, under-the-surface property - the right to mine resources)

List 2:

• Currencies (US Dollars, Euros, Yen, etc.)
• Commodities (energy and agricultural such as oil and frozen concentrated orange juice)
• Precious Metals (gold, silver, etc.)
• Industrial Metals (copper, nickel, aluminium, etc.)

I will follow up with the answer in a few days.