There will be many 'best' sentences depending on what you mean, exactly, by gold. Gold as a metal? A color? A concept?
Gold is the lustrous, soft, dense, highly malleable and ductile metallic element (Au) with the atomic number 79.
Nature's first green is gold, her hardest hue to hold.
Intelligent or ancient
The compound word in the sentence is "goldfish," a single word that describes fish with a gold color.
The adverb is foolishly and it modifies the verb believed.
Acquisitiveness is a word that describes someone who has an intense need or want to accumulate and have money or things. A good sentence would be, her acquisitiveness has caused her to have thousands in credit card debt.
Many. It's abundant in silver, and copper especially, and gold
She had a very peculiar trinket of gold.
The possessive form of the word auditorium in a sentence that describes the curtains that belong to the auditorium, would be the auditorium's (singular possessive). If you wanted to describe 3 auditoriums with the same curtains, you would write auditoriums' (apostrophe s for plural possessive). The auditorium's curtains were gold with black trim. The auditorium's curtains were gold with black trim in New York City, but two other auditoriums' curtains in Atlanta, George were black with gold trim. I study auditoriums' curtains as a hobby, but I have yet to find one auditorium's curtains have polka dots.
The population of the cities in the West decreased as unsuccessful miners moved back to the East
In most cases it would be considered improper. Try rephrasing the sentence, for example: Her favorite colors are red, white, and blue. But she also likes gold. You could change the second sentence to: Also, she likes gold.
The best place near you to sell gold would be a reputable jewelry store, pawn shop, or gold buyer. It's important to compare offers from different places to get the best price for your gold.
Gold is a very stable element and would be no use as nuclear fuel
The color that best describes the emotion of greed is usually associated with shades of green. Green can symbolize greed because it is often associated with money and material wealth.