Gold, silver, and platinum are examples of precious minerals.

Definition of precious minerals:
Precious minerals are naturally occurring, rare, and valuable substances that are highly sought after for their beauty, rarity, and various industrial applications. These minerals are typically characterized by their high economic value and are used extensively in jewelry, electronics, and other industries.

Explanation:
1. Rarity:
Gold, silver, and platinum are considered precious minerals because they are relatively rare compared to other minerals found in the Earth's crust. While gold is more abundant than silver and platinum, all three minerals are much less common than common metals like iron or aluminum.

2. Economic Value:
One of the defining characteristics of precious minerals is their high economic value. Gold, silver, and platinum have been highly prized throughout history for their beauty and durability, making them valuable commodities. They are used extensively in the production of jewelry, coins, and other decorative items. Additionally, these minerals have numerous industrial applications, such as in electronics, dentistry, and catalytic converters.

3. Beauty:
Another reason why gold, silver, and platinum are considered precious minerals is their aesthetic appeal. These minerals have a lustrous appearance and are often used in jewelry due to their captivating shine. Gold, in particular, is highly valued for its vibrant yellow color, while silver and platinum are appreciated for their silvery-white hues.

4. Industrial Applications:
Apart from their use in jewelry, precious minerals also play a crucial role in various industries. For example, gold is used in electronics for its excellent conductivity and corrosion resistance. Silver is widely used in photography, electrical contacts, and solar panels. Platinum, on the other hand, is highly valued for its catalytic properties and is used in catalytic converters, fuel cells, and chemical processes.

Conclusion:
Gold, silver, and platinum are examples of precious minerals due to their rarity, high economic value, aesthetic appeal, and extensive industrial applications. These minerals have been prized by civilizations throughout history and continue to be highly sought after in the modern world.