The crystal glasses have become milky due to a process called etching. Etching occurs when the surface of the glass is eroded by the combination of alkaline dishwashing detergents and hot water, which can create a cloudy or milky appearance on the glass. This can also happen when the glasses are washed in hard water, which contains high levels of minerals that can leave a film on the glass. To prevent this, it is important to use a gentle, non-abrasive detergent and avoid washing the glasses in very hot water. **

The crystal green-transparent-milky stripe you are describing could be a variety of minerals, but one possibility is fluorite. Fluorite is a colorful mineral that can range from green to purple, and it often has transparent or milky stripes running through it. It is commonly used in jewelry and as a decorative stone. Another possibility is apatite, which can also exhibit similar green and transparent milky qualities. Both minerals are known for their vibrant colors and unique crystal formations. **

Crystal glass is a type of glass that contains lead oxide, which gives it a higher refractive index and greater sparkle than regular glass. It is known for its clarity, brilliance, and resonance when tapped. Crystal glass is often used to make high-quality glassware, such as wine glasses, decanters, and chandeliers, due to its luxurious appearance and fine craftsmanship. **

The milky appearance on aquarium glass is often caused by a buildup of algae, mineral deposits, or bacteria. This can be unsightly and obstruct the view of the fish and decorations inside the tank. Regular cleaning and maintenance, such as using a algae scraper or magnet cleaner, and performing water changes can help prevent and remove the milky appearance on the aquarium glass. Additionally, ensuring proper water parameters and adequate filtration can also help reduce the buildup of algae and mineral deposits. **

You can find plastic crystal balls at various places such as party supply stores, toy stores, or online retailers like Amazon or eBay. Additionally, you may also find them at specialty shops that sell metaphysical or mystical items. If you're looking for a specific size or style, it's best to check multiple sources to find the perfect plastic crystal ball for your needs. **

The milky calcium deposits on aquarium glass are caused by hard water. Hard water contains high levels of dissolved minerals, such as calcium and magnesium. When the water evaporates, these minerals are left behind, forming the milky deposits on the glass. Regular water changes and using a water softener can help prevent the buildup of these deposits in the aquarium. **

Reputable buying places for coins, securities, porcelain figurines, porcelain dishes, Roman artifacts, crystal glass, and silver cutlery can be found at specialized antique shops, auction houses, and online marketplaces that specialize in collectibles and antiques. These places often have experts who can authenticate and appraise the items, ensuring their quality and value. It's important to do thorough research and seek recommendations to find reputable buying places for these valuable items. **

There is no single product that can provide a perfect porcelain skin, as achieving flawless skin requires a combination of skincare products, a healthy lifestyle, and possibly professional treatments. However, products that contain ingredients like hyaluronic acid, niacinamide, and vitamin C can help improve skin texture and tone, leading to a more porcelain-like appearance. Additionally, using a high-quality foundation and setting powder can help create the illusion of smooth, porcelain skin. It's important to remember that everyone's skin is unique, so it may take some trial and error to find the right combination of products for your individual needs. **