WebAnswer (1 of 4): Gemstones A 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. The study of gemstones is called gemology. This is a type of mineralogy (the study of minerals) that is the study o... Webgemstone, any of various minerals highly prized for beauty, durability, and rarity. A few noncrystalline materials of organic origin (e.g., pearl, red coral, and amber) also are …

Minerals and Gems National Geographic

Webgemstone, any of various minerals highly prized for beauty, durability, and rarity. A few noncrystalline materials of organic origin (e.g., pearl, red coral, and amber) also are classified as gemstones. Gemstones have attracted humankind since ancient times, and have long been used for jewelry. The prime requisite for a gem is that it must be … Web28 de dez. de 2016 · I think the correct answer from the choices listed above is the third option. Precious metals are very similar to gems since they both are rare and durable. The most popular precious metals with investors are gold, platinum and silver. hiking trainer south lake tahoe

The Metal Content Of Gemstones BeadWorksPhiladelphia.com

WebMinerals are typically formed when molten rock, or magma, cools, or by separating out of mineral-rich water, such as that in underground caverns. In general, mineral particles are small, having ... WebA gemstone (also called a fine gem, jewel, precious stone, semiprecious stone, or simply gem) is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments. However, … WebA natural gem usually takes millions of years to form. Plus, many people feel natural stones have aesthetic qualities not found in mass-produced materials. Value is another … small white mushrooms in lawn giant puffball