Precious Gemstones
Gemstones, often referred to as precious or semi-precious stones, encompass a diverse array of mineral types. These minerals are typically composed of two or more elements, predominantly consisting of silica, along with various mineral impurities. The classification of gemstones varies according to their constituent materials. These stones are frequently found in volcanic sediment areas, such as volcanic gravel, particularly along volcanic river pathways. In this article, we will explore the names of several notable gemstones.
Names of Gemstones
Ruby
Ruby is among the rare and highly valued gemstones, renowned for its significance within the gem community. It is characterized by its deep, brilliant red hue.
Diamond
Diamonds rank second in terms of importance among gemstones and are noted for their clarity, which can be white or yellow. They are formed over time due to immense pressure.
Emerald
The emerald is a variety of the beryl mineral, comprised of beryllium and aluminum silicates. It is typically found in mines amongst hard rocks and marble, distinguished by its rich green color that is both deep and transparent.
Sapphire
Sapphire, a type of corundum, is recognized for its blue color and forms underground under extreme heat and pressure. Sapphires come in nearly every color except red, with the deep blue variety being the most famous and valued, ranking fourth in gemstone significance.
Star Sapphire
Star sapphire is a unique variety of sapphire that may appear transparent or semi-transparent, often exhibiting white streaks.
Jasper
Jasper is a dense, opaque, and unrefined mineral, typically presenting a reddish hue, though it can also be found in yellow, green, blue, and gray. This type of quartz is commonly known as “jasper.”
Agate (Yemeni Agate)
Agate is a semi-transparent mineral, chemically composed of cryptocrystalline silica, and is noted for containing iron impurities. This type of gemstone comes in various colors, including red, yellow, and brown. The most recognized varieties include Yemeni red agate, known as “rummi,” and the brown variant, commonly referred to as “kabedi.”
Amethyst
Amethyst, popularly known as eastern rubellite, is characterized by its shades of either light or dark purple, as well as violet. This gemstone is a transparent mineral, with the original amethyst being a type of quartz primarily composed of silicon dioxide.
Turquoise
Turquoise is one of the historically renowned gemstones, distinguished by its unique blue-green and gray-green shades, with some specimens exhibiting a light green hue. This stone primarily consists of aluminum phosphate and contains water and copper elements.
Video on Gemstones
To learn more about gemstones and their formation, watch the video below.