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Fine Jewelry University Articles matching: “What does 10k spring mean”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Garnet
…up the night. Noah used a garnet lantern to navigate the Ark at night. The ancient world is full of praise for the carbuncle, the glowing red gemstone we now know as garnet. Early scientists named garnet from the Latin granatus, which means ‘seedlike’ because garnet crystals in rock reminded them of the shape and color of pomegranate seeds. Garnet is really a group of gemstones. The pyrope, almandine and spessartite are the red – brown to orange sometimes with a tint of…
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Fake Diamonds: The Great Diamond Attack
… would try to find out who was the real person. Technology has created many new diamonds and diamond lookalikes. “What is a real diamond?” is a difficult question these days. And the problem of separating a fully natural diamond from all … uses of this man made gem are in the pipeline. The Big Bad Synthetic In the gem world we use words with particular meanings. Synthetic is one of those words. Synthetic, in the gem world, means made of the same chemicals (elements) and …
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Gem in the Spotlight: Alexandrite
… has been known around the world as one of the most sought-after gems for the better part of 200 years. But, what makes this stone so special? Gemology of Alexandrite Alexandrite is the extremely rare, color-change variety of a gem …’s crystal structure. It absorbs most wavelengths of light very well, only transmitting green and red light. This means that depending on the light source the stone will reflect more of the accent colors of light. Since fluorescent light …
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Gem in the Spotlight: Iolite
… and deeper than many tanzanites. Iolite’s name comes from its violet color. It is from the Greek word “ios” meaning violet. Unlike many other popular gems, iolite cannot be heat treated to enhance its color. The color you see is the … color of the stone when it was first discovered. Coming in at 7 to 7.5 on the Mohs hardness scale, iolite is a somewhat soft gem. It is comparable to quartz (Amethyst, Citrine, etc), a little harder than Opal, and softer than Emerald or …
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What to Do When Your Ring Irritates Your Skin
…. Don’t worry. There are many options you have when faced with this problem. The first step is to try to determine what the cause of the irritation is. There are actually several different possible causes and it’s easy to waste a lot of … can dramatically affect our finger sizes. So, if the ring has never caused irritation in the past, and suddenly it does, it’s possible that a change in diet (eating more salty foods for instance) has caused your finger to swell slightly…
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Caring for and Cleaning Your Jewelry
… in a sink, take the precaution of plugging the drain and using a small screen strainer. How to Care for Jewelry What is the hardest natural substance on earth? Diamonds. Legend says diamonds are indestructible. Diamonds are remarkable … from touching one another when you wear or store them. Diamonds are crystals that grow with a cleavage plane. This means a sharp blow on a vulnerable spot can chip or break the stone. This does not mean that diamonds are not very durable…
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Gem in the Spotlight: Quartz
What is common and yet rare? What is well known but surprising? What is affordably priced sometimes and sometimes … of Quartz The microcrystalline varieties have a long tradition of being special to people. Microcrystalline means that the stone is made up of smaller crystals and not one big crystal. Sometimes you can see this structure with your naked…fairly hard gemstone that is resistant to scratching and chipping. It is also resistant to heat and chemicals, which means that it can withstand daily wear and tear very well. All quartz has the same refractive index at 1.54-1.55 and is …
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How to Sell Jewelry on Craigslist and Facebook Marketplace
…Arden Jewelers for a free value appraisal of your jewelry. If you like our offer, you can get cash on the spot for your gold and jewelry. Our gemologist buyers are friendly and professional, and our 20+ year track record in Sacramento means you know you’re getting a great deal from a safe and reputable jeweler
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The Magic of Polarized Light
… polarized light on a daily basis when we put on our sunglasses, turn on our TV, or sit down at our computer. But, what is polarized light exactly, and why is my jeweler writing about it? It turns out that polarized light is actually a …of the molecules are aligned with each other so only a certain vibrational direction of light can pass through. This means that all of the light that passes through a polarizing filter is “polarized.” Common Uses for Polarizing Filters …
