Gemstones are made from rare crystals that have been cut up and polished. They are usually hard and clear, or colourful. Gemstones are extremely valuable because of their beauty and rarity. Usually when we think of gemstones we imagine a jeweller’s shop window, or a beautiful ring or necklace. Polished gemstones are set into jewellery and decorative objects.
Hard or clear crystals are not only used to make jewellery, they are also used in factories, spacecraft and lasers.
Natural gemstones are found in the Earth. Crystals in the Earth’s rocks are called minerals. Gems made from these minerals are called natural gemstones. Artificial gemstones are made from glass and from crystals made in laboratories and factories. Gems of all kinds are often made to imitate more valuable gemstones.
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