Information about Jewellery
The word Jewellery is derived from the word jewel. The first pieces of jewellery were made from natural material such as shell, wood, animal teeth and carved stone. Jewellery was created for practical uses during earlier times. That uses are for storage, pinning clothes together and for wealth. It has been used exclusively for decoration in recent times.
Jewellery was often made for people of high importance to show their status and, in many cases, they were buried with it. There are many more types of Jewellery, it has been made to adorn nearly every body part from Hairpins to toe rings. Jewellery is made from gemstones and precious metals is high quality jewellery. jewellery where design and creativity is prized above material value is called Art Jewellery, and there is also growing demand for this Jewellery. Costume Jewellery is less costly, made from less valuable materials and mass produced.
All gemstones have some characteristics
Many gemstones are used in even the most expensive jewellery depending on the brand name of the designer, fashion trends, market supply, treatments etc. Others are too common and are given a semi-precious status. Most gemstones have good hardness and a high index of refraction.
All gemstones have some characteristics falling short of perfection though; even the seemingly perfect Diamond has four directions of cleavage. Since quartz is everywhere especially in common dirt and dust. Any material that is softer may be scratched during ordinary wear. Nevertheless, diamonds, rubies, sapphires and emeralds still have a reputation that exceeds those of other gemstones.
Gems are silicates which can be very stable, hard minerals. Like gemstones, one of the characteristics of a precious metal is its rarity. A few gems are oxides and only one gem, diamond, is composed of a single element, carbon. Often, new names will be created for ordinary sounding minerals which sound prettier or more valuable, such as Moldavite for the green variety of tektites.
It could not be "precious" if it were common! This means that the metal must be malleable, that it can be bent, hammered, or otherwise shaped. Two other characteristics are also important. There are also many gemstones that are not true minerals, but which are gemstone varieties of recognized minerals.