It mostly depends on demand. It can be valued by color, shape, type, cut, density, luster, sheen and clarity.
A common term used for these is gems.
Gemstones are crystalline of minerals which can be cut and polish. Synthetic stones are chemically fabricated product, in my view we can not call it synthetic gemstones they are pure synthetic products.
No, value is not limited to precious minerals like diamonds. Many materials, including industrial metals, gemstones, and even synthetic substances, can hold significant value based on their rarity, utility, and demand. Additionally, factors such as cultural significance and market trends can influence the value of various materials. Ultimately, value is subjective and can vary widely across different contexts and industries.
A place where they process rough gemstones into finished product is called a Lapidary. Most gemstones are minerals and a harder mineral will cut a softer mineral , the hardest mineral is Diamond , so in a lapidary they use finely graded Diamond powder to carefully polish the softer surface of the gemstone. A process is shown step by step at http://www.crescentgems.com/library-faceting.php Hope this helps Ahmed
because like more valuable things they are much more rare and they are very hard to find. many rocks are worthless because you can find them anywhere, but rare ones are expensive because they are much harder to come across....... .... and because wealthy people like things that shine, sparkle, and have pretty colors.
Gemstones are minerals but not all minerals are gemstones, as some minerals are very common and have little aesthetic or monetary value.
Not all minerals are gemstones; these are exceptions.
minerals
No not all. Some minerals are metals.
yes they are all minerals and gemstones
heat and pressure
Asss
No not all. Some minerals are metals.
The most valuable gemstones are the clear, crystalline form of the harder minerals such as diamond, corundum, tourmaline, topaz, and garnet. Other minerals with exceptional clarity or color, and even some rock types are known commercially to be valuable as gemstones, but hardness is a key to frequent wearability.
no becase there others name
Gemstones Metals Other useful minerals
The name for nonmetallic minerals valued for their beauty and rarity is "gemstones." Gemstones are prized for their aesthetic qualities and are often used in jewelry and decorative items. Examples include diamonds, rubies, and emeralds.