Hello, I'm an expert in the field of material science and metallurgy. When comparing the weight of two substances, we typically refer to their density, which is the mass per unit volume. Let's take a look at the densities of gold and platinum to determine which is heavier.

Gold has a density of approximately 19.32 grams per cubic centimeter (g/cm³), while platinum has a higher density of about 21.45 g/cm³. This means that for the same volume, platinum is heavier than gold.

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Platinum is more expensive because it is rarer and mined much less than gold. Only 160 tons of platinum are mined annually, as opposed to 1,500 tons of gold. Also, platinum is more dense than gold, so the same ring will weigh significantly more in platinum than in gold (and precious metals are priced by weight).read more >>