1. Brittleness: Lapis lazuli is relatively soft, with a hardness of about 5.5 to 6.5. In contrast, the hardness of diamond is 10, while lapis lazuli is easy to scratch or wear. Long-term wearing may lead to scratches or wear on the surface of the gemstone, thus affecting its beauty and value.
2. Permeability: Lapis lazuli is usually dyed and strengthened to enhance its color and appearance. However, the dyed lapis lazuli may fade or change color when it is worn due to contact with chemicals. For example, lapis lazuli may be influenced by perfume, cosmetics, detergents and other substances, and its color becomes lighter or uneven.
3. Sensitivity: Lapis lazuli is sensitive to temperature and acidic substances. Prolonged exposure to sunlight or contact with acidic substances, such as vinegar and lemon juice, may lead to discoloration or damage of lapis lazuli.
4. Avoid collision: Due to the brittleness of lapis lazuli, it is easy to break or crack when colliding or falling. Therefore, it is best not to wear lapis lazuli jewelry in strenuous activities, sports or other occasions that may affect your body.
In order to protect the beauty and quality of lapis lazuli, the following are some suggestions:
1. Regular cleaning: gently wipe lapis lazuli ornaments with mild soapy water or jewelry cleaner to avoid excessive cleaning methods.
2. Avoid chemicals: Avoid direct contact with products containing chemicals, such as perfumes, cosmetics and detergents.
3. Store carefully: Store lapis lazuli ornaments in soft cloth bags or jewelry boxes to avoid friction and collision with other ornaments.
4. Avoid exposure to the sun for a long time: try to avoid direct sunlight on lapis lazuli to prevent the color from becoming lighter or fading.
In short, lapis lazuli is a beautiful and popular gem, but it is not suitable for long-term wear because of its fragility, permeability and sensitivity. Proper maintenance and use can prolong the life and beauty of lapis lazuli ornaments.