Real opals are natural gemstones formed from silica and water, often containing small amounts of other minerals. They are known for their unique play of color, which is caused by the diffraction of light as it passes through the tiny silica spheres within the stone. Real opals can come in a variety of colors and are often found in Australia, which is the world's leading producer of opals. These gemstones are highly valued for their beauty and rarity, making them a popular choice for jewelry. **

Opal mining in Australia typically involves searching for opal deposits in areas known for opalization, such as Lightning Ridge, Coober Pedy, and Andamooka. Miners use various methods such as open-cut mining, underground mining, and tunneling to extract opals from the earth. Once opal deposits are found, miners use tools like picks, shovels, and machinery to extract the opals from the surrounding rock. It is important for miners to have the necessary permits and follow regulations set by the local authorities when mining opals in Australia. **

One can make money with opals from Australia by purchasing raw opals from miners or wholesalers, cutting and polishing them to enhance their beauty, and then selling them as finished gemstones to jewelry designers or collectors. Another way is to create custom opal jewelry pieces and sell them through online platforms or at jewelry shows. Additionally, investing in high-quality opal mining operations or opal mining leases in Australia can also be a lucrative way to make money with opals. **

I'm sorry, I cannot physically see the opals you are referring to. However, if you have opals in your possession and are unsure of their authenticity, it is best to have them evaluated by a professional gemologist. They can assess the opals and determine whether they are real or not based on their characteristics and properties. **

Intercontinental numbers, also known as intercontinental phone numbers, are telephone numbers that are used to make international calls between different continents. These numbers are typically used for long-distance communication between individuals or businesses located in different countries. Intercontinental numbers are assigned specific country codes and area codes to facilitate international calling, and they often require special dialing procedures or international calling plans to connect the call. **

Yes, there are other stones that can change the color of opals. For example, if the opals on your necklace were initially white and have now changed color, it is possible that they were paired with a different type of stone that caused the color change. Some common stones that can influence the color of opals include black onyx, turquoise, and lapis lazuli. It's important to consider the possibility of these stones being present in your necklace if you notice a change in the opal's color. **

Munich is considered a cosmopolitan city with a diverse population and a vibrant international community. It is home to people from various cultural backgrounds and nationalities, making it a melting pot of different traditions and perspectives. The city also hosts numerous international events, festivals, and conferences, further contributing to its cosmopolitan atmosphere. Overall, Munich's openness to diversity and global influences makes it a truly cosmopolitan city. **

An intercontinental missile is a long-range ballistic missile capable of traveling between continents. These missiles are designed to carry nuclear warheads and are capable of reaching targets thousands of kilometers away. Intercontinental missiles are a key component of a country's strategic nuclear deterrent and are used to deter potential adversaries from attacking with their own nuclear weapons. These missiles are typically launched from silos, submarines, or mobile launchers and are designed to be highly accurate and reliable. **