Natural resources

Precious stones

Precious stones

Precious stones consist mainly of natural organic materials, formed by various natural factors, or from rare mineral elements, with little presence in nature, and are characterized by their high value, exorbitant price, and many characteristics, and they are considered one of the most charming and attractive ornamental purposes, and they can be formed In various forms, and making the most beautiful types of jewelry, especially necklaces and crowns, which were reserved for kings, nobles, and the wealthy.

Examples of gems

  • Precious stones of organic origin: among the most famous are pearls, which are extracted from the depths of the sea, and are extracted from shells, and ivory, and are obtained from elephant tusks, and amber, and it consists of amber insects, and coral, which is one of the famous marine animals.
  • Precious stones of inorganic origin: among the most valuable and famous are diamonds, which are formed in the layers of the earth from coal and plants, sapphires, emeralds, zircons, and brilliants.

Information about precious stones

  • The most important sources of obtaining precious stones are sedimentary rocks, igneous rocks, pegmatites, and metamorphic rocks, as well as valley sediments, banks of rivers that have been depleted for a long time, estuaries of current rivers, and ancient rivers.
  • One of the most important characteristics of precious stones is that they are charming in beauty, characterized by their scarcity in nature, and are very durable, characterized by a high degree of hardness.
  • The value of gemstones is evaluated according to color. Brightly colored gemstones, which are saturated and rare, are characterized by high attractiveness. The degree of purity, clarity of color, lack of impurities, and the absence of defects are among the most important characteristics of a precious stone. Also, attention must be paid to weight, as the weight of The precious stone does not exceed five carats.
  • Diamond occupies the first degree among precious stones, and it is the master crowned over all of them, and it is characterized by very high hardness, as its hardness reaches ten on the hardness scale. India is the first country in the world to produce diamonds, followed by Brazil, South Africa, Australia, and Borneo.
  • The sapphire stone consists of aluminum oxide, and it is one of the rarest and most beautiful gemstones, and its color is scarlet red. Madagascar, Tanzania and Thailand are the first countries in the world in its production.
  • Examples of very rare gemstones include sapphire and beryl, which is a mineral gemstone and consists mainly of silicate of beryllium and aluminum.
  • The precious stone, called moonstone, is extracted from the ground, and is famous for reflecting light just like the moon.
  • Amazonite, and ancient legends say that it expels a thousand demons, and invalidates magic and touch.
  • Among the most famous gemstones: quartz, agate, onyx, carnelian, chrysoprase, plasma stone, blood stone, peridot, in addition to the garnet.
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Types of diamonds and their grades