What are the different types of precious stones? |
| What are the different types of precious stones? Posted: 19 Feb 2011 12:40 PM PST The categories of precious stones – There are many different types of precious stones, and knowledge of the various categories can be a collector or enthusiast to dramatically expand its repertoire. Some stones are so unique in their chemical composition and crystal structure that fall into their categories, while others will be thrown into a collective pot. Here are the main types of gems and precious stones, jewels Diamond – Diamonds are a special kind of precious stones andis known to be the hardest natural substance known to man. Diamonds are primarily high-carbon crystals that were fused together under extreme pressure and heat. Diamonds themselves are not particularly rare, with thousands of the world is being withdrawn each year, but large high quality diamonds are extremely rare, and it is these that are known to the rules of gems in the crown as the world's most precious stone. Corundum – this is thesecond hardest type of gemstone, and is mainly defined as the aluminum oxide and various trace elements. The trace elements, different types of corundum, and perhaps the two most famous examples of this type of stone are rubies and sapphires. Rough corundum is not used as a gemstone, but is used as an industrial abrasive power because of its harsh nature. Chrysoberyl – this is the third hardest gem, and while it uses aluminum oxide as a basic elementas corundum, has large quantities of beryllium mixed with it. Look Magi, chrysoberyl often come in a green shade of yellow, even if they look better because they tend to change color in reality a bit 'under the different types of light known. Cat's eye chrysoberyl and alexandrite are two common transformed into jewelry. Quartz – this is actually one of the most common types of minerals in the world and is available in a variety of colors. The main trend to form inhexagonal prism and is an excellent if unflawed. The main reason quartz is still classified as a precious gem is that it is really easy to find quartz stones, finding a large, perfect and unflawed quartz crystal quality is its extremely rare gem. Some examples of quartz gems commonly used in jewelry, onyx, amethyst, citrine and carnelian. Beryl – this is a stone known for its beauty and has elements in common with both chrysoberyl and quartz. It isbasic chemical composition is similar to chrysoberyl, with beryllium and aluminum distributed, but mixed with other trace elements. E 'basic crystalline structure, on the other hand, is closer to quartz, hexagonal in nature. It 's easier, Beryl is actually transparent, while other colors including emeralds and aquamarines. You can come in yellow and red as well, and these are referred to as "red" or "yellow" emeralds. Jade – is a kind of precious stoneinitially expressed in the same category as beryl a pot. The main reasons for this, because both can be mined in similar places and have similar structures, opacity, and appearance (just different colors) are. Later chemical analysis has shown that the elements from which the different forms of precious jade, namely nephrite and jadeite, differed completely from Beryl, Jade deserve their own category in the collection of gems. jade stones are often composed of calcium-based andMagnesium items. Feldspar – this is a particular type of gemstone whose base material of tectonic nature. It is often found in areas of high geographic instability like earthquake and volcanic chains. Feldspar, the basic chemical composition is very common elements found deep in the earth's crust. What makes it valuable as a gem is the same factor that makes a diamond much more than a lump of coal, in general, elements that contain the sameDiamond. That is to say with sufficient heat and pressure is applied, the tectonic elements fuse in a rare red gemstone known as feldspar to do. Organic Gemstones – the most famous examples of this are pearls and amber. Basically, organic gemstones are those that are naturally in organic sources as opposed to mineral sources. The beads are formed from oysters, while amber is a yellow stone of fossilized tree resin formed. Although not in itself the gems are organic gems, still usedheavily in jewelry so are included in this list. |
| Round Diamond Engagement Rings Posted: 18 Feb 2011 10:00 AM PST diamond wedding rings are considered as a universal symbol of love. Diamonds are known to be the best friends of a woman, and are the ideal gifts. The sparkle of a diamond is the ability to win the heart of a woman and the gift of a diamond engagement ring is the best way to begin life with a new one. Diamond engagement rings and are available in a variety of colors The flooring in various shapes, cuts prices. The diamond cutting is an importantFactor that is responsible for the appeal process e. Among the various sections, round cut diamond rings are very popular. Some dealers and jewelers on display a fabulous collection of diamond engagement rings round, with some of the more unusual creations. These rings consist of 57 facets, a culet and a touch of fire and sparkle. Round diamond engagement rings in white gold, yellow gold and platinum. Most of these rings have been designeda single specimen, and the simplicity and grace of a single round diamond can never be compared to other varieties. The more modern design and attractive cuts are not capable of simple beauty of a solitaire game turn. The rings are well balanced and lonely on this special offer elegance. round diamond rings are the best ways to engagement rings. They are timeless pieces of class and grace and no doubt resistTest your fashion and time. These rings popular sports sections are known for their exquisite details are known. They add sparkle to the clothes and the timeless charm. The round diamond wedding rings are gaining popularity with today's youth. They evoke the feelings of the person and cause a brilliant effort to display true trust and love. Their simplicity and grace are truly timeless. |
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