Minerals are mined for several different reasons. Some minerals can have properties such as radioactivity or fluorescence as well. Some of these are color, luster, tenacity, hardness, and fracture. Minerals have different distinct classifications. ![]() Minerals belong to one of 15 different chemical groups, and these represent the compounds they contain. There are more than 4,000 minerals that are formed naturally within the earth, and each one has a specific crystal structure. Minerals are usually found between sediments or in areas that contain lava flows. They can also be formed by water in caverns under the sea. They are formed when magma, which is molten rock, cools. They are defined by their shape and their crystalline makeup. Minerals occur naturally within the earth's surface and are solid formations. While most rocks are not cut or polished to be used as gemstones, some rocks, including lapis lazuli, are classified as gems. Rocks do not have a special chemical or mineral makeup. Rocks are made from minerals and can come in every size: They can be tiny pebbles or mountains big enough on which to climb or drive. The scientific term for rocks is petrology, and understanding them is crucial for understanding the formation and mineral makeup of the earth. Precious gemstones include diamond, emerald, ruby, and sapphire. Some semiprecious gemstones include amethyst, garnet, citrine, turquoise, and opal. Gemstones are usually classified as semiprecious and precious stones. Unpolished gemstones simply look like ordinary rocks cutting and polishing allows them to have brilliance and sometimes color (leading to their value) that can't be found in other types of stones. ![]() Gemstones are usually measured by their hardness, size, and rarity. It is usually a decorative and very beautiful stone, and it is also usually very valuable as well. The evaluation of a gemstone is based on the value of the gem given by a gemologist, one who studies these gems. This is a type of mineralogy (the study of minerals) that is the study of the physical properties seen by the naked eye and also in magnification of the stone. The study of gemstones is called gemology. Understanding gemstones, rocks, and minerals can help you understand your next large jewelry investment.Ī gemstone is usually a mineral, but it is one that has formed crystals and then been cut and polished professionally to be made into a piece of jewelry. ![]() It was this love affair that led me into the industry and helped me really understand what makes up each type of stone in each individual piece of jewelry. As a young college student, I became interested in gemstones, which led me to a love affair with minerals and rocks as well. Gemstones, rocks, and minerals are extremely important to the jewelry industry.
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