Does anyone know what the blue stone in Egyptian jewelry is ?
952758
As mentioned by the previous responders, lapis lazuli or turquoise are the most likely actual stones to be a part of your necklace.  While lapis lazuli is not actually found in Egypt it was popular in ancient Egypt and so has continued to be popular for jewelry sold to tourists.  Turquoise comes primarily from the Sinai (or did in ancient times) and so was/is also a popular stone.\nThere is a possibility that what you have is not a stone but a material called faience.  It's a quartz frit based substance that is fired and produces a glaze.  Depending on other additives it can be blue, green, red, etc.  Blue or blue-green were very popular colors for faience in ancient Egypt and a number of faience objects were produced including amulets, inlays, statuettes, vessels, etc.  Materials that imitate faience are also popular in modern jewelry.
23703
Iolite is a mineral sometimes used as a gemstone. Gem quality  a sapphire blue in color to a bluish violet color to yellow gray in color depending on refraction of light It is found in Burma and Sri Lanka. Actually called, cordierite. On the Mohs hardness scale about 7 to 7.5\n The two stones can be confused but are very different and especially when price comes into the conversation as tanzanite is a rare stone that is very very pricey.\nTanzanite is a marketing name by Tiffany & Co. and this stone is not popular with alot of people because of the mining industry of Tanzania. They make a great deal of money off this stone while using methods many people find deplorable. It is still. It is a  purple stone generallly after heat treating because it comes out of the ground a bronze color. It has a Mohs hardnes of 6.5 to 7
629061
yes; they've found coral wagonwheels on the ocean floor matching the chariot wheels used by Egyptian soldiers. they've also found one that is silver, as Pharoah would use. This one only has 4 spokes, as the Pharoah's wheels were back then.
150219
Here's the pages with the info. You'll have to read fast. Don't wait so long next time. Good Luck!!\n\nhttp://mineral.galleries.com/minerals/gemstone/aquamari/aquamari.htm\n\nhttp://mineral.galleries.com/minerals/silicate/garnets.htm\n\nhttp://mineral.galleries.com/minerals/gemstone/class.htm
929781
What kind of stone?\n.
527447
Ive been a gem cutter for nearly 35 years...Gunner is right on his points about opal, but your case is a little different with what you have...If you would like to email me at tahoeman_69@sbcglobal.net or IM me at tahoeman_69, I would be happy to discuss everything you would like to know...It is really more involved than I can describe here and I think it would help to uncomplicate the process if we talked via messenger...
245991
It is no wonder why early cultures from around the world have attributed magical properties to the opal. The mysterious patches of color that appear and disappear with every movement give opals a life of their own. Opals have been collected for thousands of years. The oldest opal artifact, estimated to have been collected at around 4000 B.C., was found in a cave in Kenya. Opals were one of the most highly prized gemstones to the Greeks and Romans. Early Greeks believed opals were the source of prophetic powers. As the Roman Empire grew, so did the demand for opals. A Roman Senator, Nonius, chose to be exiled rather than give his valuable opal to Marc Antony who wanted to give it to his lover, Cleopatra. A legend tells of a Roman Emperor who offered to trade one-third of his kingdom for a single opal. The Roman natural historian expressed his difficulty in describing the gem: "... it is made up of the glories of the most precious stones. To describe it is a matter of inexpressive difficulty: There is in it the gentler fire of the ruby, the brilliant purple of the amethyst, the sea-green of the emerald, all shining together in an incredible union." Opals have often found their way into the jewelry and crowns of royalty. Queen Victoria adored opals and kept a fine collection. \n\n     While opals have always been an object of curiosity and mystery, the powers attributed to it have not always been positive. In the late 18th century, the opal was considered to bring bad luck to its possessor. The Spanish King Alfonso XII had given an opal ring to his wife who died shortly thereafter. The ring was passed on to family members and each person who wore it died mysteriously. Eventually, the king himself wore the ring and he too died unexpectedly. While historians will say that the deaths can be attributed to the cholera epidemic of the times, many have blamed the deaths on the opal.\n\nhttp://www.gbjewelers.com/education/opals/opal-information.html
724289
Because God has painted it in blue color.\nCheers !
1073474
http://en.wikipedia.org/wiki/Gemology\n\nLinks to three websites with information on the bottom of this page.
284631
The stones are likely insoluable salts of calcium, magnesium. A chemical analysis to show presence of these could be easily performed by dissolving in acid and using flame photometry. That will only give you a 'yes or no' answer. A definitive chemical analysis is likely beyond the scope of a school lab.
821377
It is interesting that the term "semi-precious" is no longer accepted for use by the international jewellery trade organizations with good reason. For example under the old system alexandrite is semi-precious and yet prices can reach $50,000 per carat and more, the same with tourmaline where Paraiba material can reach $20,000 per carat and so on with a whole list of other examples, hardly what one would call SEMI-precious. To answer your question, yes turquoise is a precious stone.
937790
Peridot (pronounced pair-a-doe) is a transparent yellowish-green Magnesium/Iron Silicate. It is a gem variety of the mineral Chrysolite or Olivine and its chemical formula is given by: (Mg,Fe)2SiO4.\n\nPeridot ranges in color from light yellow-green to the intense bright green of new spring grass to olive. Because of the way peridot splits and bends the rays of light passing through it, it has a velvety appearance, a rich glow, and a slightly greasy luster. The purer green a peridot is the higher the value. Any tinges of brown or visible flaws greatly diminish the price. See jewelry made with peridot.\n\nThe best-colored peridot has an iron percentage of less than 15% and includes nickel and chromium as trace elements.bracelet It is not clear whether the word peridot comes from the Arabic word faridat, which means gem or if it is derived from the French word peritot which means unclear. In the 18th century,the French were the first to call this yellowish-green stone peridot. Before this time, peridot was called topaz. Peridot has been mined as a gemstone for an estimated four thousand years and is mentioned in the Bible under the Hebrew name of pitdah. \n\nThe second website listed belows shows sizes and typical prices.
483598
A gemstone / birth stone is a collective term for all ornamental stones that possess attributes like beauty, rarity, durability.Astral gems, apart from these material properties, increase the psychic powers of an individual by their curative powers.  Astral gems also have the power to ward off the ill-effects of planets and worn in the form of birth stone..\n\n\nThe gem stone / birth stone should be set in the right metal and with the right weight.  It should be worn on the correct finger of the working hand.Each gem, with its constant source of specific rays,gives rise to constructive vibrations that have therapeutic powers. Hence wearing your appropriate birth stone will always give you luck and prosperity.
498201
Peridot (pronounced pear-e-doe) is the gem quality variety of forsterite olivine. It is bright yellow-green in color, and has a hardness of 6.5 on Mohs scale. The chemical composition of peridot is (Mg, Fe)2SiO4. Peridot is one of the few gemstones that come in only one color. The depth of green depends on how much iron is contained in the crystal structure, and varies from yellow-green to olive to brownish green. Peridot is also often referred to as "poor man's emerald". Olivine is a very abundant mineral, but gem quality peridot is rather rare. Peridot crystals have been collected from iron-nickel meteorites.\n\nPeridot is found in Arizona, Hawaii, Nevada, and New Mexico, in the US, and in Australia, Brazil, China, Kenya, Mexico, Myanmar (Burma), Norway, Pakistan, South Africa, Sri Lanka, and Tanzania. Peridot of high quality is commercially mined in the eastern lava fields of Saudi Arabia. The largest cut peridot is a 310 carat (62 g) specimen in the Smithsonian Museum in Washington, D.C.. A special variety of peridot from Pakistan is known as "Cashmere" peridot. Due to the large size of the rough stones found there, cutters have successfully created faceted stones of over 100 carats (20 g) from the rough gems of this area.\n\nIt is the birthstone for the month of August. According to folklore, the peridot will bring its wearer success, peace, and good luck. Peridot has been found in Egyptian jewellery from the early second millennium BCE and was mined from the volcanic island of Zebirget, or St. Johns Island, in the Red Sea. Native Hawaiians referred to peridot crystals as the tears of Pele, their goddess of fire\n-----------------\nPeridot is perhaps derived from the French word peritot which means unclear, probably due to the inclusions and cloudy nature of large stones. It could also be named from the Arabic word faridat which means gem. In either case, peridot has been mined as a gemstone for an estimated four thousand years or better, and is mentioned in the Bible under the Hebrew name of pitdah. Peridot gems along with other gems were probably used in the fabled Breastplates of the Jewish High Priest, artifacts that have never been found. The Greeks and Romans referred to peridot as topazion and topazius respectively and this name was later given to topaz, to end the confusion with the two gems. Historical legend has it that peridot was the favorite gemstone of Cleopatra. Pliny wrote about the green stone from Zagbargad Island in 1500 B.C.. Even until recently have jewelers used the term "chrysolite" (latin for golden stone) in referring to peridot gems for some reason. This term has also been used to refer to other gemstones, of a more golden color. \n\nZagbargad (Zebirget) Island has been known as St John's Island and was mined for centuries. Before World War I, this island was extensively mined and produced millions of dollars worth of gems. Since then the mining has been off and on and at present is all but nonexistent. Still, specimens from here are available at times and it certainly is a classic mineral locality. \n\nThroughout time, peridot has been confused with many other gemstones, even emerald. Many "emeralds" of royal treasures have turned out to be peridots! And although peridot is distinctly a different shade of green, many jewelers refer to peridot as "evening emerald". Emerald is a dark green as opposed to a yellow green and always contains inclusions. Other green gemstones confused with peridot include apatite (which is much softer); green garnets (have no double refraction), green tourmaline and green sinhalite (both of which are strongly pleochroic), moldavites (no double refraction) and green zircon (significantly heavier). All of these gemstones rarely have as nice a yellow component to their green color as does most peridot, but darker green peridot can be confusing when good crystal form is not discernible. \n\nPeridot is a beautiful ge
146342
You mean the eye of Ra?\n\nIf so, it is a spiritual symbol of the ancient egyptian religion.
161864
Jeanne's Rock & Jewelry in the Bellaire Triangle (the Bissonnet side) is one of my favorites. They're very knowledgable and friendly. 713-664-2988\n\nCollector's Choice is another one I've heard of but have never visited, as well as The Crystal Store off of Ashcroft.\n\nIf you're in ever in Kemah, there are at least two good ones there you might want to try.\n\nYou might also contact the Houston Gem & Mineral Society and see if they have sponsors or members who can help.
131740
Try http://www.riogrande.com/. You can order a catalog from them that shows the diferent stones that they sell. Most are fairly inexpensive.