Be Informed Before Buying Gemstones & Gemstone Jewelry
More than 4,000 naturally occurring mineralsinorganic solids that have a characteristic
chemical composition and specific crystal structurehave been found on Earth. They are formed of simple molecules or individual elements arranged in repeating chains, sheets, or three-dimensional arrays.
Minerals are typically formed when molten rock, or magma, cools, or by separating out of mineral-rich water, such as that in underground caverns. In general, mineral particles are small, having formed within confined areas such as lava flows or between grains of sediments. Large crystals found in geodes and other rocks are relatively rare.
Rocks themselves are made of clusters or mixtures of minerals, and minerals and rocks affect landform development and form natural resources such as gold, tin, iron, marble, and granite.
Silicatesincluding quartz, mica, olivine, and precious minerals such as emeraldsare the most common class of minerals, as well as the major components of most rocks. Oxides, sulfides, sulfates, carbonates, and halides are other major mineral classes.
Many minerals form beautiful crystals, but the most prized of all are gemstones. Uncut gems are often fairly ordinary looking. It's only when they are cut and polished that they obtain the brilliance and luster that makes them so valued.
Historically gems have been divided into precious and semiprecious classes. There are a number of semiprecious gems, many quite beautiful, but diamonds, rubies, sapphires, and emeralds continue to qualify as "precious." (At one time, amethyst was also considered a precious gem, but large reserves were later found in Brazil, reducing its value.)
Minerals and gems are classified by their physical properties, including hardness, luster, color, density, and magnetism. They're also identified by the ways in which they break, or the type of mark, or streak, that they leave when rubbed on a laboratory tool called a streak plate.
1: Find out how to determine whether you're getting a good deal
2: Learn how to judge quality of gemstone jewelry by comparing pictures of different gemstones
3: Discover which gemstone is best for you by reading about gemstone meanings and symbology
4: Get unbiased information about the best places to purchase gemstones and gemstone jewelry.
You can read about gemstone meanings, gemstone symbology, learn how to determine quality of gemstones, how to ensure you get value for your money and everything you'd need to know to be an informed buyer of gemstones.
Aati Gemstonesdo not sell gemstones or gemstone jewelry, nor are we affiliated with any seller, so you can be sure that the information is 100% unbiased.Aati Gemstonesis here to empower people in the process of buying gemstones and gemstone jewelry.
http://aati-gemstones.blogspot.com/
Be Informed Before Buying Gemstones & Gemstone Jewelry
By: asim
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