Turquoise is a color that falls between blue and green on the color spectrum. Copper is the primary element responsible for the blue and green colors in turquoise. Turquoise is sensitive to chemicals, so it's important to keep your jewelry away from substances that can harm it. Turquoise formation often occurs in areas with hydrothermal activity, where hot water or fluids rich in minerals circulate through the Earth's crust. Turquoise has a hardness of 5 to 6 on the Mohs scale of mineral hardness. West Asia is geologically diverse, with a wide range of rock formations, mineral deposits, and tectonic activities. The Middle East, particularly Iran, is known for producing some of the world's finest turquoise gemstones. Look for well-known and reputable gemstone retailers, either online or physical stores, that specialize in selling gemstones. The color of a ruby is one of the most important factors in determining its quality and suitability for jewelry. Color is one of the most important factors in determining the value of emeralds. Colombia's economy is classified as a middle-income, emerging market economy that has seen steady growth over the past decades. Its key sectors include oil, mining (notably coal and gold), agriculture (with coffee, bananas, and flowers being major exports), manufacturing, and services. Colombia has adopted open-market policies, implementing free trade agreements (FTAs) with numerous countries and regions, including the U. S. , the EU, and countries in Latin America. Colombia's fiscal policy is geared towards encouraging foreign direct investment (FDI), promoting exports, and diversifying its economy beyond dependence on natural resources.
