When speaking of jade, one can be referring to jadeite or custom written essay nephrite pieces. Although similar, jadeite and nephrite jade have different physical and chemical characteristics. Jade in both of its forms is used in quite a few different applications, from carvings and jewelry to weapons, tools and kitchen ware.
Jade in all its forms has been used as the base for carving since the prehistoric times with jewelry and ornamental carvings being made from Jade throughout history. As jade is such a hard material, it was able to be used for weapons such as knives and tools for edging. Once other materials were discovered for tools, jade became used for more ornamental than utilitarian purposes. Jade was very precious in some ancient societies, and was sometimes worth even more than Gold. In the early Chinese dynasties, jade (or nephrite jade) was used for utilitarian and ceremonial objects. One of the most prized of the jade was the white, or “mutton-fat,” nephrite. The qualities of jade, its colors, and its hardness, caused the Chinese to associate it with the soul and immortality. In pre-Columbian Costa Rica, jade is one of the most precious materials. It was believed to be a symbol of power. They used it to decorate the body with three main types of decorations: bar pendants, beak birds, and axe gods. Most of the found jade artifacts from Costa Rica contains holes, as they were beaded through string for the decorations of the body. The jade from Costa Rica is mostly found in the deep blue-green color. Jadeite is exported from Guatemala, the USA, and the largest exporter is Union of Myanmar. It is one of the minerals recognized as the gemstone jade. Jadeite is formed from metamorphic rocks under high pressure and low temperature. The color of jade is affected by the element of chromium. Some of the finest Jadeite comes from Tawmaw, Myanmar (Burma), which is one of the largest producers of gem-quality Jade. Other important deposits are Itmurundy Massif, Krasnyi business ethics research paper topics Oktyabr, Kazakhstan; Kharp, Siberia, Russia; Yunian, Tibet, China; Itoigawa, Niigata Prefecture, Japan; and Sierra de las Minas, Motagua Valley, Guatemala. In the U.S., large masses come from Clear Creek in the Diablo Range, San Benito Co., California; and waterworn nuggets from Cape San Martin (Jade Cove), Big Sur, Monterey Co., California.
Jadeite is often more expensive than nephrite. It is used in more expensive pieces of fine jewelry, such as earrings, necklaces, and bracelets. While there are ways to determine the amount of modification that a piece of jade has endured, it is often left pure as it is more valuable in this state. In general, nephrite is more often used in jewelry than jadeite. Nephrite is also referred to as New Zealand greenstone, New Zealand jade, spinach jade, and kidney stone, among others. Nephrite is also used as ancient burial pieces. In ancient China, nephrite was used for utilitarian and ceremonial objects. In New Zealand, nephrite jade is very valuable and it was used for weapons and ornaments. Certain pieces, like the short club and neck pendant were considered very valuable heirlooms and were handed down through the generations. While both nephrite and jadeite are considered jade, their properties and uses are different. Nephrite is often referred to simply as jade, while jadeite is always referred to as such. Both jadeite and nephrite are valuable as pieces of jewelry and ornamental objects. Nephrite, or traditional jade, has been around for centuries while jadeite is a relatively new material that has only been on the market since the 1800s.