Gemology
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Gemstones or gems, also known as precious or semi-precious stones or jewels are pieces of mineral, which, in cut and polished form, are used to make jewellery or other decorations. Most gemstones are hard, though some soft minerals are used in jewellery because of their lustre or other physical properties that have aesthetic value. Learn more about gemology, the science dealing with precious stones, and the wide variety of gemstones found on our planet in this book.

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Gemstones or gems, also known as precious or semi-precious stones or jewels are pieces of mineral, which, in cut and polished form, are used to make jewellery or other decorations. Most gemstones are hard, though some soft minerals are used in jewellery because of their lustre or other physical properties that have aesthetic value. Learn more about gemology, the science dealing with precious stones, and the wide variety of gemstones found on our planet in this book.