special requirements of the jewelry maintenance

Maintenance and jewelery in addition to the above general principles, some jewelry, jewelry because of the different gemstones have different character, so in the maintenance of some special requirements and considerations, are respectively introduced as follows:
(1) diamond, ruby, sapphire, tourmaline, topaz stone (topaz) and other gem jewelry. Hard texture of these gems, able to withstand greater pressure, but they are also common shortcomings - brittleness, diamond and topaz, with cleavage of these gems can not stand the beat, percussion, otherwise they will be with brittle avalanche, or with cleavage cracks along the cleavage direction, or even fragmentation. Keep in mind that even if the hardness of the largest diamond, and can not withstand the impact.
(2) jade jewelry. Although the emerald hard and toughness, with a certain degree of resilience. However, after the processing of jade products, are often thin, by the impact will be damaged.
(3) emerald jewelry. Emerald's hardness is slightly larger than the emerald, but more than the emerald to be brittle, so can not withstand the shock and beat more than the emerald. In addition, the emerald afraid of heat, in a fire will make color fade easily burst at high temperatures.
(4) Opal jewelry. Opal's hardness is lower, should be avoided friction with other items. Opal contains water should be avoided by the high temperature, otherwise due to the evaporation lose points, ranging from loss of transparency, the re-occurrence of burst. In addition, opal is not acid, so, Pei Daiou parked jewelry should avoid high temperatures and acidic substances. Collection of opal jewelry, should also be noted that the environment can not be too dry, otherwise will cause dehydration, cracks, or even rupture. To prevent dehydration, should be separated by a time in the dry season, opal jewelry on the water soaking once.
(5) amethyst jewelry. Amethyst color instability, when the temperature or after prolonged exposure will cause fading. Wearing or the collection process, should avoid high temperature or exposure.
(6), malachite and turquoise jewelry. These two gems of hardness than those of water, very easy to wear. Both chemically unstable, the case of acid corroded dissolved. The turquoise color, especially in the high temperature and even longer period of time of exposure and sweat soaked, but also make the turquoise color. These are all important to note that in the process of wear and collection.
(7) of pearl and coral jewelry. The low hardness of pearl and coral, vulnerable to friction leaving the surface lose their luster. The two ingredients are calcium carbonate, the case of acid will be subjected to corrosion dissolve. The summer is easy to sweat, sweat also make pearls, the surface of the coral damage and lose their luster. Powder in the cosmetics, perfume and hair gel, etc., but also the pearl will be gradually eclipsed. Therefore, in the summer it is best not to wear such jewelry. Perspiration tarnished, can be placed in the rinse water, and then a soft fabric gently wiped away. Pearl jewelry in the collection before, be sure to rinse after water storage place must also avoid cosmetics.
(8), lapis lazuli jewelry. Lapis lazuli jewelry tarnished, must not be soaked in water and flushing. Lapis lazuli is a variety of mineral composition of the granular aggregates, soaked in water and flush the gem surface dirt will penetrate to the internal, leading to the change of lapis lazuli original luster. Lapis lazuli jewelry tarnished with a damp cloth to gently wipe, wiped off the dirt.


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