Answer:
Option (3)
Explanation:
Gemstones are those pieces of minerals that are being cut and are in their polished form. They are economically valuable and the factors that control the value of these gemstones are color, cutting in perfect shapes, luster, durability, and rarity.
Whereas, regular minerals are those that occur naturally and are inorganic in nature. They are comprised of one or multiple elements. They are commonly found on earth.
From the given question, the best option to differentiate between regular minerals and gemstones is that gemstones are very rare and are economically very valuable, in comparison to the common regular minerals.
Thus, the correct answer is option (3).
