what is the difference between blue zircon and blue topaz?
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While the intensity of zircon's particular blue shade ranges from a light pastel to a deep, vibrant hue, blue zircon of any intensity typically has a greenish tinge. Blue topaz comes in a wide range of blue shades and depths of saturation, but these shades lack a green tinge, favoring instead a pure blue tone.
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Gem and mineral hardness is measured on the Mohs scale. ... For example, diamond is only one number away, but it's many times harder than gems in the corundum family. Zircon is rated 6 to 7.5 on the Mohs scale. It has fair to good toughness.
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It is usually transparent to translucent. Crystals form as cubes or octahedra, and well-formed cubic crystals will also cleave into octahedra. Blue John is a massive variety of fluorite. ... Blue John is massive fluorite, exclusive to Derbyshire.
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Aventurine and jade are two green colored gemstones that may confuse some people. Aventurine is a variety of quartz which contains small Mica, Hematite or Goethite. Jade is the gemstone name given for two different minerals Nephrite and Jadeite. This is the key difference between Aventurine and Jade.
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Emerald Colour: hue, tone and saturation. Emerald, like ruby, blue sapphire, and tsavorite garnet, is one of the primary-colour gemstones. ... Emerald is usually either a bit yellowish or a bit bluish; in practice, it may have a bit of both as secondary hues).
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A Crystal (clear) bead is completely transparent. On a Crystal (clear) rhinestone, you can clearly see the foil on the back. Crystal AB, on the other hand, uses the same base stone or bead, but has an added coating which reflects many different colors, primarily gold, blue and pink.
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Cubic zirconia is also slightly denser than diamonds. A jeweler or gemologist can easily distinguish a CZ stone from a diamond by weighing it on their scale. A 1 Carat Diamond Ring, like this one, will likely appear slightly larger than a 1 Carat cubic zirconia, depending on the gemstone's shape.
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Topaz is a mineral, Al₂SiO₄(F, OH)₂. As such, it is not a metal. (There are a few metals that occur “native”—that is, uncombined—and so they count as a special type of mineral, so one must say that most (almost all) minerals are nonmetallic.)
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Riebeckite is a moderately hard mineral with a glassy lustre. It forms prismatic crystals that are dark blue or black in colour. A fibrous variety, crocidolite, is of metamorphic origin and is commonly called blue asbestos. The mineral is associated with acidic igneous rocks such as granites and syenites.
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Citrine (quartz family) and topaz are actually unrelated mineral species. ... Precious topaz, ranging in color from brownish orange to yellow, is often mistaken for “smoky quartz” or “citrine quartz,” respectively—although quartz and topaz are unrelated minerals!
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Topaz Gemstone appears quite identical to yellow sapphire or Pukhraj as they have a similar yellow color. Topaz having hardness of 8.00 on Mohs scale. ... Topaz is much cheaper as compared to yellow sapphire. Topaz is found abundantly on earth while yellow sapphire is rare and, therefore, much more expensive than Topaz.
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This means that zircon gems will likely be smaller than topaz gems of the same weight. Both gems are susceptible to abrasions and breakage, making careful handling particularly important. Zircon's composition, more brittle in comparison to topaz, limits the shapes cutters are able to make with the gem.
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What is the difference between the red and the blue top? The red top is the original Yakult and the blue top is Yakult Light. Both have the same number of unique bacteria; however, Yakult Light is enriched with Vitamin D & E and contains less sugar.
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Prices for blue zircons average around $75 per carat for 5 to 6 carat gems. The better colors with fancy shapes can wholesale from $125 to $150 per carat. Top gem blues can reach $200 per carat. Stones over 10 carats range from $150 to $175 per carat.
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Quartz has a hardness of 7 on the MOHS scale, while Topaz is an 8. That means that Topaz will scratch Quartz. ... Quartz has a nice sparkle but Topaz often reflects yellows and blues like a diamond, that is why it is described as silver at times, the shine and sparkle are totally different from Quartz.
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One of the most significant differences between blue diamonds and sapphires is their chemical makeups. A blue diamond is composed entirely of pure carbon. ... On the other hand, blue sapphires are made of corundum, or aluminum oxide. Traces of titanium that are responsible for their color.
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Aquamarine has the colour of light blue to blue-green while topaz is a gem of all colours that comes in orange, sky blue, pink, light or deep blue, blue-green, green, transparent, light violet and white. ... Aquamarine is less refractive than topaz and therefore lacks double refraction lines like Blue Topaz.