1, the difference between jewelry and jewelry
Jewelry refers to rare, beautiful and precious natural materials such as diamonds, pearls, red sapphires and ivory. Jewelry refers to a variety of decorations made from various precious stones, carved, inlaid and finely woven.
2, the classification of jewelry and jade:
(1) Inorganic jewellery mainly includes:
a, natural jewellery: it is mined from the mine, and can be made into precious gems of jewelry and crafts, such as diamonds, aquamarine, jade and so on.
b, semi-precious stones: jewelry that replaces and simulates precious stones with similar substances. Generally refers to the middle and low grade gemstones, the hardness is below 7 degrees.
c. Synthetic jewellery: It is artificially manufactured by scientific methods based on a natural gemstone and using the same properties as natural gemstones. Such as synthetic rubies, sapphires, emeralds, diamonds and so on.
d, filled with gems: It actually refers to the use of artificial color lead-containing glass, plastic products and other materials to pretend to be gemstones, no matter in terms of color, hardness, chemical properties or value, can not be compared with the above-mentioned several gems.
(2) Organic jewelry is evolved from living things. Such as pearls, corals, amber, coal fines, etc., the main components are carbon, hydrogen, oxygen, combined in different proportions.
3, the identification of jewelry:
(1) Color ratio: Natural jewellery has natural color, and synthetic gems often have excessive color and are not natural enough.
(2) Pair clarity: Clarity refers to the transparency and cleanliness of the gemstone. Generally, there are fewer defects in synthetic jewelry and the interior is clean.
(3) Look at the honing: the process of processing jewelry. After honing the natural jewels, the surface is smoother, the refractive index is strong, and the angular lines are crisp; while the synthetic gems are thick and round and blunt after being honed.
(4) Card weight method: The same volume of jewelry is discriminated by weighing. For example, the same volume of zircon and diamond are weighed at the same time, and the heavy one is diamond.
(5) Light recognition: Place the jewelry under the lamp, check the lamp cover so that the light does not directly enter the eye, then place the jewelry on the edge of the lampshade, half in the bright part and half in the dark place, and half of the light in the light can be used to light it. The internal ç‘•ç–µ is illuminated.
4, the cleaning of jewelry:
(1) Materials with higher hardness, such as diamonds, emeralds, red sapphires, etc., can be washed with water. If it is not ideal, it can be washed with a cleaning solution, that is, the jewelry is first immersed in a small basin of neutral detergent. In warm water, brush off the dirt on the back, then wash it on warm water with warm water, then dry it with a dry cloth.
(2) Medium hardness materials, such as jade, garnet, etc., can only be gently scrubbed with a soft brush and a washing liquid, then covered with absorbent paper or gauze, the sewage is sucked, and then the alcohol is added with water. Lightly smudge the jewelry in a soft cloth, dry it in the shade, or air dry.
(3) Low-hardness amber, coral, turquoise and other water-absorbent jewelry, avoid washing with water, heat will crack it, and should not be exposed to alcohol, oil, vinegar and so on. Usually use a flannel to clean the stains, pay attention to reduce friction.
(4) For pearls that are not wear-resistant and have weak resistance to acid and alkali, try to avoid sun, rain and sweat. After each use, wipe it with a soft cloth or first apply some cold cream, then wipe it with a soft cloth, which is better.
Summary: The above mainly refers to the meaning and difference of jewelry and jewelry from four aspects. Jewelry is simply a part of jewellery and is inlaid with precious jewels such as stone and jade. Some methods of identification and cleaning methods for jewellery are largely applicable to jewellery. This article is a simple distinction between them, other physical and chemical aspects of identification and cleaning methods are introduced in the previous article, everyone interested can go and see.
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