Science Fair Project Encyclopedia
Jewellery (spelled jewelry in American English) consists of ornamental devices worn by persons, typically made with gems and precious metals. Costume jewellery is made from less valuable materials. However, jewellery can and has been made out of almost every kind of material.
Jewellery, particularly when made with precious materials, is generally considered valuable and desirable. Some cultures have a practice of keeping large amounts of wealth stored in the form of jewellery. Jewellery can also be symbolic, as in the case of Christians wearing a crucifix in the form of jewellery, or, as is the case in many Western cultures, married people wearing a wedding ring.
Jewellery in various forms has been made and worn by both sexes in almost every (if not every) human culture, on every inhabited continent. Personal adornment seems to be a basic human tendency.
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