Where did opals originate?
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If you mean how did they form...\n\nOpals form from hydrothermal solutions containing silicon dioxide. That simply means heated water containing dissolved quartz.\n\nThese solutions are deposited in sedimentary rocks where they come out of solution. Sedimentary rock is where you find opals.\n\nOpals contain small amounts of water in its structure. That is what gives it its "play of colors".\n\nIt is often referred to as hydrated silica & is called cryptocrystalline quartz because it is essentially quartz without a crystal structure.\n\nSome of the world's most beautiful opals come from Australia & Mexico. The ones found in Mexico often have a reddish "play of colors" & is called fire opal.
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I read somewhere that Grace Hopper's ancestors had served in the American Revolutionary War. Therefore they must have originated from the United States.
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The history of pedicures dates back to ancient Egypt. A carving of a pharaoh's official was noted as representing pedicures and manicures.
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It is originated in kerala , India.  \nC.V.N kalary is a famous Kalaripayattu academy in Kerala\n\nFor more information http://www.kalarippayat.com/
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Gold comes from the earth and is found in two major kinds of deposits. One of these is called a placer deposit, which is a name for an accumulation of gravel and sediment that has been deposited by a stream. The gold in these deposits actually originated in the other type of deposit, but was eroded away and carried to a place where the stream slowed enought that it could not  move the heavy gold. \n\nThe primary gold deposit is known as a lode or vein. These are thought to be deposited by circulating geothermal waters that move upward into the earth along cracks and fissures created by volcanic rocks that are also pushing upward. Another possible method of depostion may be that gold is coming from solutions that originate in igneous rocks that are cooling in the subsurface. \n\nSome of the largest deposits of gold are in very low concentration (<<1%)deposits of ore called porphyry deposits. These deposits often are mined primarily for copper, lead, zinc, or silver and gold is produced as a byproduct. However, the largest single source of gold in the US is the Bingham Canyon Mine in Utah which has produced about 18 million troy ounces of gold. Most porphyry deposits are believed to have originated by migration of fluids from deep areas of volcanic activity.
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Amber is a fossil resin much used for the manufacture of ornamental objects. Although not mineralized it is sometimes considered and used as a gemstone.\n\nThe Baltic amber or succinite is found as irregular nodules in a marine glauconitic sand, known as blue earth, occurring in the Lower Oligocene strata of Sambia in Kaliningrad Oblast, where it is now systematically mined.\n\nAlthough amber is found along the shores of a large part of the Baltic Sea and the North Sea, the great amber-producing country is the promontory of Samland, now part of Russia.\n\nAmber and certain similar substances are found to a limited extent at several localities in the United States, as in the green-sand of New Jersey, but they have little or no economic value. A fluorescent amber occurs in the southern state of Chiapas in Mexico, and is used extensively to create eye-catching jewellery. Blue amber is recorded in the Dominican Republic. These Central American ambers are formed from the resins of Legume trees (Hymenea) and not conifers.
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Origin of the word came around 1920 - 1925 ... combining the word "dingle" (by association of "dangle") and berry.\n\nSome INTERESTING info:\n\nAfter coming to Scotland in the middle ages with the great movement of Viking settlers, the ancestors of the Dingleberry family lived in Dingall, in the county of Ross, Scotland.  The place-name is derived from the Old English word dingle, which meant valley or hollow.
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Ophiolites are pieces of oceanic crust that have been pushed over continental plates, exposing cross-sections of crust that demonstrate the processes that create oceanic plates. They all originally formed at mid-ocean ridges or some other spreading center. Some of the most spectacular ophiolites are in Oman, and are thought to have been pushed upward onto the Arabian shield during the Cretaceous. The sequence there is 15 km thick. \n\nOther locations where ophiolites can be found are Cyprus, New Guinea, Norway, Albania, Turkey, Newfoundland, and the central and northern coast of California. \n\nOne distinguishing feature of ophiolites is the upper layer of pillow basalts. These basalts are huge pillow-shaped mounds of extruded lava piled one on top of another. Below the pillow basalts are dikes of gabbro and dunite, massive and layered gabbro, and at the base peridotite (harzburgite), thought to be mantle rock. \n\nThere is a diagram showing formation, another showing the thrusting, and a simplified vertical section here:\nhttp://volcano.und.edu/vwdocs/vw_hyperexchange/ophiolites.html
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Rosa chinensis viridiflora, a chance mutation discovered before 1856, exact origin unknown.  Yes through genetic mutations and also through weird hybrids and gene splitting and techno planting medlings. They are also sometimes just dyed that color
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Wow, this would take a book to explain in detail!  I'll try to explain as briefly as I can. \n\nMost minerals are crystals*.  \n\nCrystals are basically formed by an arrangement of atoms in a pattern that repeats itself in 3D.  They start as a small cluster of atoms which grows into a recognisable crystal as more atoms are attracted by the electrical forces of those already in the crystal structure.  \n\nCrystals are formed mainly from molten solids (such as in molten magma) and solution (in water) and less often, from vapors (i.e. gases).  \n\n* Some minerals are not crystalline.  E.g. Opal, Obsidian.  These exhibit an amorphous character, meaning they have no crystal form or structure.  \n\nHope that helps a little!
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Aquamarine is a blue beryl. Beryl with other mineral impurities that have turned it green is emerald. Pure beryl does not have a remarkable color, but if the crystal is called beryl, it's usually in the red-orange-yellow range.\n\nBeryl forms from pegmatites, the fluids left over when magma begins to crystallize deep inside the earth. These fluids flow into cracks in the rock and and form huge crystals shaped in sheets. If these fluids are rich in beryllium, they crystalize to become beryl.  So, you will find them in volcanoes, especially when the material on top has eroded away to bring the surface nearer to the ancient magma chamber.\n\nBeryls, emeralds, and aquamarines are notably found in Spain, Russia, Namibia, Madagascar, Pakistan, Colombia, Brazil, North Carolina, and San Diego County, California. Most beryl crystals are small, but some discovered in Colombia may be more than 5 meters in length. One beryl discovered in Madagascar weighed 36,600,000 kilograms!  \n\nAquamarines are actually quite inexpensive. You may be able to buy a loose one carat aquamarine on eBay for less than US$5 (I can't testify to the clarity or quality of such gems.) For a little bit more money you can buy them set in jewelry. I'm very fond of the aquamarine earrings I've been wearing for about three straight days now!
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The purple people,  or Purpurae, were an early pre-celtic tribe mentioned only in Smorgasbordsaga, where they are described as commonly using an indigo woad derived from the bark of the Blue Oak (Quercus Bilius). \nThis provoked hallucinations such that they believed themselves capable of flight, and so were given to hurling themselves over cliffs.  \nThe saga records that a one-eyed horse would appear at these moments and devour them as they fell.\n\nI hope that answers your question.
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What an odd question. They come from variations of a dog-like species that evolved. What exactly are you asking?
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that'll be chalcedony. it differs from quatrz in it's shape, as it usually occurs in botryoidal masses, whereas quartz occurs more in hexagonal prisms. chalcedony is similar to opal, but can be distinguished by its higher specific gravity. it can be formed as a dehydration product of opal, hence the connection. the colour is highly variable, as it can be white, blue, red, green, brown or black, and varieties of chalcedony include jasper, agate, chrysoprase, onyx and carnelian. it's formed in rock cavities, especially lavas, and it develops at relatively low temperatures, whereas quartz occurs in any rock type, and usually formed at higher temperatures
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Sulphur originates from volcanic sources, and you can find it deposited as pure sulphur around volcanoes.\n\nGiven time, volcanic rocks can be eroded, and the sulphur would be deposited into sedimentary rocks like marls and limestone, associated with gypsum, celestine, aragonite and calcite.\n\nYou can also have sulphur in the following rock minerals typically as metallic sulphides: copper pyrites, galena, blende, cinnabar; and sulphates:  gypsum and anhydrite (calcium), barytes (barium) and kieserite (magnesium).
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When liquid magma comes out of the earths crust at the mid-oceanic ridge, it cools rapidly forming crystals. These crystals have magnetic properties that align the crystal according to the earths magnetic field at the time they cooled, similar to how a compass needle points north, the magnetism in the crystal indicates which direction was north when the crystal was formed.\n\nHowever, the direction that is north today, was not always north in the past, in fact many times in geologic history, the north and south poles were reversed entirely. This is reflected in the "magnetic bands" found in rock on the ocean floor.\n\nSo, if you imagine the Atlantic Ocean between the U.S. and Europe, there is a mid-ocean ridge between the two. If the plates never moved, then the magma coming out of this ridge would just pile up, but instead, this is the "engine" that moves the plates away from one another. As you move from the mid-ocean ridge towards the continents, the crystals in the rock have different magnetic orientations that show these flip-flops of the earths magnetic field through geologic history. Because this material originated at the mid ocean ridge, but is now closer to the continents, it shows that the earths crust, the floor of the ocean, is moving AWAY from the mid-ocean ridge and TOWARDS the continents.\n\nThere are a lot of  diagrams that would probably help you understand this better. CHeck out a geology book, or look online.\nGood Luck!
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The price varies.\n\nThe location and quality are very important.  Some rough opals are not much better than rocks.  Others command a high price.\n\nThe biggest problem is that until cut, one never knows the quality of the finished item.  Years of experience help, but is no guarantee.\n\nBuying or selling, contact an opal dealer with a good reputation.\n\nCheck out the site below for high quality rough: