Don't apply it to everything “golden”: Unlike in English, you cannot use
黄金 to describe things like a “Golden Retriever” dog. That has a specific name:
金毛寻回犬 (Jīnmáo xúnhuí quǎn), which literally means “Golden-Haired Retriever.” The use of
黄金 as an adjective is typically for abstract concepts like time, opportunity, and location.