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Precious Metals and Stones
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The Gemstone is a particular variety of stone or mineralized substance which is mostly cut or smoothened for the purpose of jewelry making or for collecting. The experts of gems usually add up some significant measurements to classify the gemstones with specific attributes. These Specifications include “Habit”, “Chemical Compilation” and “Crystal Scheme”. For instance, the chemical compilation of the gemstone called ruby comprises aluminum oxide. The crystal schemes can be categorized in a number of classes including, monoclinic, cubic etc.
Commonly gemstones are classified into semi-precious gemstones and precious gemstones. The precious gemstone category usually includes the gems like diamond, ruby, emerald, etc. Color is the most perceptible and magnetic attribute of gemstones to captivate the collectors. Some colourless gemstones are also available. This difference in color is generated from the bodily structure of the specific gem stone. Some precious gemstones are found which are very delicate and may be applied in ornaments. A number of gemstones are formed with specific chemical compositions. Names of some precious gemstones are Diamond, Emerald, Garnet, Moonstone, Malachite, Hematite, Obsidian, Sapphire, Tanzanite, Citrine, Topaz, Girasol, Kunzite, Zircon, Turquoise, Chalcedony, Agate, Amethyst, Ruby Tourmaline, Olivine and Agate. Numerous man-made artificial gemstones are fabricated to simulate several gemstones. Some of the imitated gemstones do not possess the chemical compositions or attributes of the original stones, but several laboratory made gemstones like synthetic ruby, diamond or sapphire are bestowed with very similar chemicals as well as substantial features. Mostly these synthetic or artificial versions of gemstones are traded in a small percentage of the original gemstones price. AndalusiteAndalusite was first discovered in Spain and was named after Andalusia which is a province in Spain. The cutters while cutting Andalusite try to bring out a mix of colors such as green, golden, yellowish, orange that gives it a pleasing look. Andalusite is a relatively low-priced gemstone and is espeially appropriate for men's jewellery. |
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