Gem Laboratory Instruments
Microscope
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GIA® Duplex II Refractometer
Gemstones Are A Natural Product Of The Earth
Forming natural gemstones is a geological process that takes place over an extended period. Gemstones are minerals that have been subjected to specific conditions and environments, leading to their unique crystalline structures and beautiful appearances. Here’s a simplified overview of how natural gemstones are formed:
Crystallization
Within these igneous rocks, minerals start to crystallize as the temperature decreases.The specific mineral composition and conditions during crystallization determine the type of gemstone formed.
Metamorphism
Forming natural gemstones is a geological process that takes place over an extended period. Gemstones are minerals that have been subjected to specific conditions and environments, leading to their unique crystalline structures and beautiful appearances. Here’s a simplified overview of how natural gemstones are formed:
Sedimentation And Erosion
Within these igneous rocks, minerals start to crystallize as the temperature decreases.The specific mineral composition and conditions during crystallization determine the type of gemstone formed.
Other Formation Methods
Hydrothermal Processes
Hydrothermal fluids, rich in dissolved minerals, can play a crucial role in gemstone formation. When these fluids circulate through rocks and cool, they deposit minerals, forming gemstones in veins or cavities.
Organic Processes
Certain gemstones, like pearls, are formed by living organisms. Pearls, for instance, are produced by oysters and other mollusks as a response to an irritant within their shells. Time and Pressure: The process of gemstone formation often requires significant time and pressure.
Crystals grow slowly over thousands to millions of years, and the pressure they experience influences their structure and appearance. It’s important to note that each gemstone has a unique set of conditions under which it forms, resulting in a diverse range of colors, shapes, and properties. The geological processes involved are complex, and the beauty of natural gemstones lies in the intricate details of their formation.
