Whois & Analysis for gemvara.com

A gemstone (also called a gem, fine gem, jewel, precious stone or semi-precious stone) is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments.

However, certain rocks (such as lapis lazuli) or organic materials that are not minerals (such as amber, jet, and pearl) are also used for jewelry and are therefore often considered to be gemstones as well.

Most gemstones are hard, but some soft minerals are used in jewelry because of their luster or other physical properties that have aesthetic value.

Rarity is another characteristic that lends value to a gemstone.

Apart from jewelry, from earliest antiquity engraved gems and hardstone carvings, such as cups, were major luxury art forms.

A gem maker is called a lapidary or gemcutter; a diamond worker is a diamantaire.

Jewellery or jewelry consists of small decorative items worn for personal adornment, such as brooches, rings, necklaces, earrings, and bracelets.

Jewellery may be attached to the body or the clothes, and the term is restricted to durable ornaments, excluding flowers for example.

For many centuries metal, often combined with gemstones, has been the normal material for jewellery, but other materials such as shells and other plant materials may be used.

It is one of the oldest type of archaeological artefact – with 100,000-year-old beads made from Nassarius shells thought to be the oldest known jewellery.

The basic forms of jewellery vary between cultures but are often extremely long-lived; in European cultures the most common forms of jewellery listed above have persisted since ancient times, while other forms such as adornments for the nose or ankle, important in other cultures, are much less common.

Historically, the most widespread influence on jewellery in terms of design and style have come from Asia.

A precious metal is a rare, naturally occurring metallic chemical element of high economic value.

Chemically, the precious metals tend to be less reactive than most elements (see noble metal).

They are usually ductile and have a high lustre.

Historically, precious metals were important as currency but are now regarded mainly as investment and industrial commodities.

Gold, silver, platinum, and palladium each have an ISO 4217 currency code.

Recycling is the process of converting waste materials into new materials and objects.

It is an alternative to "conventional" waste disposal that can save material and help lower greenhouse gas emissions (compared to plastic production, for example).

Recycling can prevent the waste of potentially useful materials and reduce the consumption of fresh raw materials, thereby reducing: energy usage, air pollution (from incineration), and water pollution (from landfilling).

Nature, in the broadest sense, is the natural, physical, or material world or universe.

"Nature" can refer to the phenomena of the physical world, and also to life in general.

The study of nature is a large part of science.

Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena.