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Articles

THE GLORY OF BLUE

Blue Agate is a layered form of chalcedony quartz. It is known to occur in a wide variety of colors and interesting patterns, including many shades of light to dark blue. Some popular trade names used for blue agate include blue lace agate, Mohave blue agate and blue banded agate. Many agates today may


GEM (ORNAMENTAL MINERAL OR ORGANIC SUBSTANCE)

Gem, commonly, a mineral or organic substance, cut and polished and used as an ornament. Gems also are used as seals (items of assurance) and as talismans (good-luck charms). For birthstones, see month. Properties of Gems The qualities sought in gems are beauty, rarity, and durability. The beauty o


PRECIOUS AND SEMI PRECIOUS GEMSTONES: MYTH AND REALITY

The idea that some gemstones are precious and others are only semi-precious is familiar to every buyer of colored stones. Precious stones - diamond, ruby, sapphire and emerald - traditionally command high prices due to their extraordinary color or brilliance and extreme rarity. While the precious stones are deservedly famous, the conventional distinction between precious and semi-precious gems is laden with myth and misconceptions. Let's try to sort out some of the myths from the reality. One common misconception is that the distinction between precious and semi-precious gemstones is traditional, going back many centuries. In fact it is a recent innovation, dating only to the nineteenth century. The first use of "semi-precious" to mean "of less commercial value than a precious stone" can be traced back to only 1858. Tsavorite your Email address to receive updates on gem testing trends and technologies.

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