Amethyst is a violet variety of quartz. The name comes from the Koine Greek αμέθυστος amethystos from α- a-, "not" and μεθύσκω methysko / μεθώ metho, "intoxicate", a reference to the belief that the stone protected its owner from drunkenness. The ancient Greeks wore amethyst and carved drinking vessels from it in the belief that it would prevent intoxication.
Emerald is a gemstone and a variety of the mineral beryl (Be3Al2(SiO3)6) colored green by trace amounts of chromium and/or sometimes vanadium. Beryl has a hardness of 7.5–8 on the Mohs scale. Most emeralds are highly included, so their toughness (resistance to breakage) is classified as generally poor. Emerald is a cyclosilicate.
A gemstone is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments. However, certain rocks and occasionally organic materials that are not minerals are also used for jewelry and are therefore often considered to be gemstones as well. Most gemstones are hard, but some soft minerals are used in jewelry because of their luster or other physical properties that have aesthetic value. Rarity is another characteristic that lends value to a gemstone.
Rock most often refers to:
Topaz ( TOH-paz) is a silicate mineral of aluminium and fluorine with the chemical formula Al2SiO4(F, OH)2. It is used as a gemstone in jewelry and other adornments. Topaz in its natural state is a golden brown to yellow. A variety of impurities and treatments may make topaz wine red, pale gray, reddish-orange, pale green, pink, or opaque.
A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum. Other varieties of gem-quality corundum are called sapphires. Ruby is one of the traditional cardinal gems, together with amethyst, sapphire, emerald, and diamond. The word ruby comes from ruber, Latin for red. The color of a ruby is due to the element chromium.
A gem, or gemstone, is a cut rock or mineral.
Gemology or gemmology is the science dealing with natural and artificial gemstone materials. It is a geoscience and a branch of mineralogy. Some jewelers are academically trained gemologists and are qualified to identify and evaluate gems.
A triplet is a set of three items, which may be in a specific order, or unordered. It may refer to:
Tanzanite is the blue and violet variety of the mineral zoisite, caused by small amounts of vanadium. Tanzanite belongs to the epidote mineral group. Tanzanite is only found in Tanzania, in a very small mining area near the Mererani Hills.
GemStone IV is a multiplayer text-based online role-playing video game produced by Simutronics. Players control characters in a High Fantasy game world named "Elanthia". The first playable version of the game was known as GemStone ][ and was launched in April 1988 on GEnie. It was one of the first MMORPGs and is one of the longest running online games still active. Access to the game is subscription-based through its website, with three additional subscriptions levels available, "Premium", "Platinum" and "Shattered", in addition to a free-to-play model introduced in early March, 2015.
Gems, or gemstones, are polished, cut stones or minerals.
Navaratna is a Sanskrit compound word meaning "nine gems" or "ratnas". Jewellery created in this style has important cultural significance in across many southern, and south-eastern Asian cultures as a symbol of wealth, status, and also as having other claimed talismanic benefits to health and wellbeing. The setting of the stones is believed to hold mystical powers, tied to astrology, mythology and intrinsically linked to the Indian religions of Hinduism, Jainism and Buddhism. The ancient origin of the significance behind the nine gems has proved impossible to trace but is inherently tied to mythological concepts around cosmology and astrology and the "Navagrahas", or "nine celestial gods".
A birthstone is a gemstone that represents a person's period of birth that is usually the month or zodiac sign. Birthstones are often worn as jewelry or as a pendant necklace.
Demarco Lamonte Castle, also known as Gemstones, is an American singer, rapper and songwriter from Chicago, Illinois. He is most well known for his affiliation with fellow Chicago artist Lupe Fiasco.
Mining is an important industry in Pakistan. Pakistan has deposits of several minerals including coal, copper, gold, chromite, mineral salt, bauxite and several other minerals. There are also a variety of precious and semi-precious minerals that are also mined. These include peridot, aquamarine, topaz, ruby, emerald, rare-earth minerals bastnaesite and xenotime, sphene, tourmaline, and many varieties and types of quartz .
A stone is a small piece of rock.
The Shelby Gem Factory, also known as ICT Incorporated, was a Michigan company that manufactured artificial gemstones through proprietary processes. The factory made more varieties of man-made gemstones than any other in the world. It grew artificial gems and gem simulants, including synthetic ruby and sapphire and simulated diamonds, citrine, topaz, and other birthstone substitutes, and mounted them in gold or silver jewelry.
