A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). Other varieties of gem-quality corundum are called sapphires. The ruby is considered one of the four precious stones, together with the sapphire, the emerald and the diamond.
The word ruby comes from ruber, Latin for red. The color of a ruby is due to trace amounts of chromium. Some rubies show a star figure when cut en cabochon, due to reflected light.
Rubies have been used as currency and objects of beauty since before 600 BC. Rubies were found in Sri Lanka as early as 300 BC, but most were mined in Burma until the 18th century AD. Burma Ruby are considered to be the most expensive red gemstone priced per carat in the world after Red Diamonds. Ruby has a hardness of 9 in Mohs Scale.
Red Rhodolite garnet is a type of pyrope-almandine garnet, a group of minerals that are all red or reddish in color. The name "rhodolite" comes from the Greek word for rose, and this gemstone certainly lives up to that name with its lovely pinkish-red hue.
This gemstone is found in several places around the world, including the United States, Brazil, Zimbabwe, and Madagascar. It's usually cut into cabochons or faceted into beads, and because it's so affordable, it's a great choice for jewelry projects.
Red spinel is a gemstone that has been prized since ancient times. It is known for its deep red color, which can range from a vibrant pinkish-red to a dark purplish-red. While red spinel is found in many different parts of the world, the best quality stones come from Burma, Sri Lanka, and Madagascar.
Red spinel has been used in jewelry for centuries, and it is especially popular in Asia. In fact, many of the world’s finest examples of red spinel are found in Chinese museums. The stone was also used in the British Crown jewels until 1717 when it was replaced by diamonds.
While red spinel is not as well-known as some other gemstones, it is highly valued by those who are familiar with it.
Rubellite tourmaline is a gemstone that ranges in color from pink to red. It is named for its resemblance to rubellite, a pink variety of tourmaline. Rubellite gemstones is found in Madagascar, Brazil, Sri Lanka, and Afghanistan. It is used in jewelry and as a decorative stone.
Rubellite gemstones, also called Red Tourmaline, is a semi precious gemstone that has been used in jewelry and other decorative items for centuries. The stone gets its name from its resemblance to rubellite, which is a pink gemstone variety of tourmaline. Rubellite tourmaline ranges in color from pale pink to deep red, and it is found in several countries around the world, including Madagascar, Brazil, Sri Lanka, and Afghanistan. This Red tourmaline has a hardness of 7.5 in Mohs Scale
Red coral gemstones is a marine invertebrate that is typically found in deep, dark waters. It is a beautiful reddish-orange color and has a hard, stony skeleton. Red coral is not actually a plant, but an animal. Its scientific name is Corallium rubrum.
Red coral has been used for centuries for jewelry and other decorative purposes. It is a very popular material in Asia and the Middle East. In some cultures, red coral is believed to have magical properties and is used in amulets and talismans.
Red coral grows very slowly, only about 1 cm per year. As it grows, it builds up its stony skeleton by depositing calcium carbonate. This makes red coral very valuable as it takes many years to produce just a small piece of jewelry.
Rhodochrosite gemstones are a manganese carbonate mineral with the chemical composition MnCO3. Rhodochrosite is typically pink, but can also be red gemstone, yellow gemstones, or brown gem. It has a Mohs hardness of 3.5-4 and a specific gravity of 3.5-3.7. Rhodochrosite occurs in high-temperature hydrothermal deposits and metamorphic rocks. It is an important ore of manganese and is also used as a gemstone and jewelry making material.
Rhodochrosite is a beautiful pink to red colored mineral that has been used as a gemstone and jewelry making material for centuries. It is relatively soft, with a Mohs hardness of only 3.5-4, and has a specific gravity of 3.5-3.
Red beryl, also known as "bixbite," is a rare and valuable red variety of the mineral beryl which is also a extremely rare red gemstone and fetch very high price per carat. It is only found in a few places around the world, including Utah, New Mexico, and California in the United States. Red beryl typically has a deep red color, but it can also be orange-red or yellow-red. The red color is caused by trace amounts of manganese in the crystal structure of the beryl.
Red beryl is very rare and is only found in a few places around the world. The most notable deposits are located in Utah, New Mexico, and California. The gemstone typically has a deep red coloration; however, it can also be orange-red or yellow-red in some cases. The beautiful hue is created by trace amounts of manganese within the crystal structure of red beryl.
A fire opal is a type of opal that is found in Mexico. It is a semi-precious stone that has a wide range of colors, from white to yellow to orange to red. The name "fire opal" comes from the stone's ability to reflect light, which gives it a fiery appearance.
Fire opals are found in a number of different locations in Mexico, including the state of Querétaro and the municipality of San Luis Potosí. The stone is also found in other parts of the world, such as Australia and Brazil.
While fire opals are not as valuable as diamonds or other precious stones, they are still quite popular among jewelry enthusiasts. The stone's unique coloration and reflective properties make it a popular choice for rings, necklaces and earrings.
Red zircon is a vibrant and eye-catching gemstone that hails from Mexico. Its deep red hue is caused by trace amounts of iron within the stone. Red zircon is a popular choice for jewelry, as it is said to bring good luck and fortune to those who wear it. The stone is also believed to have healing properties, and is sometimes used in alternative medicine treatments.
Red Andesine is a variety of Sunstone found in the Andes Mountains of South America. It is characterized by its red coloration, caused by inclusions of Hematite. Red Andesine is considered to be a semi-precious red gemstones and is used in jewelry making.
Sunstone is a type of feldspar that occurs naturally in a variety of colors, including red. The unique appearance of sunstone is due to the presence of platelets or flakes of hematite within the stone. These inclusions cause the sunstone to shimmer and sparkle in the light.
Red Andesine is a relatively rare variety of sunstone, and is only found in certain areas of South America. The stone gets its name from the Andes Mountains, where it is mined.
Red Jasper is a semi-precious stone that has been used throughout history for its beauty and power. Jasper is an opaque, red to brick-red variety of chalcedony and is often used as a red gemstones. It can be found in a wide range of locations including Brazil, India, Madagascar, Russia, and the United States.
Red diamond are some of the rarest and most valuable diamonds in the world. They get their color from a process called "chromium oxide" which is when trace amounts of chromium are present during the diamond's formation with the common 10 hardness in the mohs scale. The red color is caused by light absorption in the stone. The most famous red diamond is the "Moussaieff Red Diamond", which weighs 5.11 carats and was found in Brazil. It is currently worth an estimated $20 million dollars making it a whopping $3.9 million dollars per carat.