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Fine Jewelry University Articles matching: “Metal detector gold”

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Fine Jewelry University (Show All FJU Articles)

  1. Gold Purity and The Differences Between White and Yellow Gold

    … what is gold? Yes the scientists tell us gold is an element with the chemical symbol Au. We know it is the heraldic metal and it is a rare yellow mineral that is the most malleable and pliable of all metals. Yes, but what does that mean … 14 karat gold not just plated with gold. A plated piece of jewelry has a thin layer of gold over a base or non gold metal. Some plated jewelry has markings that look like real solid gold. For example, a plated piece can be stamped: 14k …

  2. Nickel in jewelry can cause allergic reactions

    What to Do When Your Ring Irritates Your Skin

    …what the true source of the problem is. There are two main types of irritation: 1) Physical irritation caused by the metal rubbing against the skin, and 2) allergic reactions to jewelry. These types of irritation can look very similar, but…foods for instance) has caused your finger to swell slightly. Allergic Reactions Some people are allergic to certain metals that are used in jewelry. This can show up as a rash or discoloration of the skin which can begin hours or even …

  3. The Difference Between White Gold and Platinum

    …platinum is the most basic and is the foundation of all the other differences. White gold and platinum are different metals. White gold starts out as gold. Gold is yellow. Platinum is itself a white metal. White gold and platinum have … white metals such as silver, nickel or palladium. The white color is achieved by a careful choice of the alloying metals, which bleach the deep yellow of pure gold. The amount of alloy mixed with gold is called its karat. The key to …

  4. See the Star White Gold difference

    Star White Gold

    … white gold is made, it can be yellowish to light yellow. When white gold rings are new they are coated with a white metal called rhodium. Rhodium is a metal very similar to platinum and rhodium shares many of the properties of platinum …How white is your white gold? Style, fashion, and beauty are all reasons to choose white gold. White gold compliments diamonds. White gold is … its white color. The rhodium plating is used to make the white gold look whiter. The natural color of the white gold could actually be a light yellow color. The rhodium is very white and very hard, but it does wear away eventually. …

  5. Measuring Gold Weight

    …is more trivia about gold weights. The troy system historically was used for measuring the weight of drugs, precious metals and gemstones. The name comes from the French city of Troyes. The noble metals (gold, silver and platinum) all use …The old riddle goes: what weighs more a pound of feathers or a pound of gold? Some say gold because it is heavier. Others say they are both a pound so they weigh the same. Both are wrong. How …Tradition. Gold is not weighed in the ordinary weights. Gold is weighed in the troy measurement system. One ounce of gold is not the same as the ordinary ounce (really called avoirdupois ounce). The best way to understand this is to …

  6. Jewelry solder is different than normal jewelry metals

    Jewelry Solder: What You Should Know

    …, you have very likely seen solder in action. But, what is solder and how is it different than the rest of the metal that makes up your jewelry? What is Solder? To answer this question we first have to understand metal alloys. If you haven… gold purity . Now you should know that the metals that make up our jewelry are actually a mix of multiple different metals in different combinations called alloys. For the sake of simplicity, we will focus our discussion on gold jewelry, …

  7. Platinum

    … to know (and more) about Platinum and its use in jewelry. Platinum is one of the rarest and most durable precious metals. Platinum’s rich, white luster enhances the brilliance and will maintain its shining luminosity forever, unlike other…Platinum is rare, the coveted treasure of discerning individuals. Platinum is one of the strongest and most enduring metals. Some of the world’s greatest treasures are set in platinum, such as the Hope Diamond. It is also one of the …

  8. The different parts of an engagement ring

    Anatomy of a Ring

    … with your vast knowledge of jewelry terms. Shank Every ring has a shank. This is the technical term for the band of metal that encircles the finger. There would be no ring without the shank. If the ring has a distinct design feature on …, the ring shank is generally said to start at the point that the design stops. A jeweler will usually add or remove metal from the bottom of the shank when sizing a ring. This can sometimes be done so well that you would never know it was…

  9. Retipping is an important jewelry repair technique

    Jewelry Repair FAQ

    …much, the stone becomes at risk of falling out of the mounting. Retipping is the process of adding a small amount of metal (usually gold or platinum) to the top of worn down prongs to keep the gemstone secure. In the past, almost all … 0.175 microns (or 0.000005 inches) thick. What is Rhodium Plating? Rhodium is a member of the Platinum family of metals, but it is actually whiter and harder than platinum. Rhodium plating is done the same way as gold plating, and it …