They are not even recognized in the market.
Tourmalines are gemstones found in various colors. They come in green, pink, red, blue, yellow, colorless and even black or multi-colored.
Paraiba tourmaline is an element found mainly in Sri Lanka. If one wishes to learn more about the element, the best place to look would be in a specialist geology book, or in an encyclopedia.
Paraiba tourmaline is the rarest and most expensive tourmaline. Paraiba tourmaline comes in a variety of colors in the blue to green ranges of extraordinary vividness. Its name is derived from the Paraiba state in Brazil, where it was first discovered.
Yes, you can find blue-green tourmalines in places like the Himalayas and parts of Brazil, where they are often mined. Additionally, black-billed magpies are commonly found in regions of western North America and parts of Asia. While these two may not occur in the exact same location, you could potentially explore areas where both are present, such as mountainous regions with suitable habitats. Always check local regulations and guidelines before mining or birdwatching in specific areas.
Carat is the weight of Gemstone and to know how much is the weight of the multicolored Tourmalines you will have to weigh them. The value of the multicolor tourmaline depends on 4 C's - Cut, Carat, Clearity and Color.
Gold can be mined in gold mines.....
it is found in places where gold is mined
Marcelinho Paraiba.
how is found and mined
They mined for them and found them
Granite or precious stones