The topaz, also known as the gemstone for the 7th, 11th, and 25th years of wedding, appears in an extensive array of colors but usually is yellow and can also be found in shades of blue like Blue Topaz and Sky Blue Topaz. The topaz got its name from the Sanskrit term tapas meaning “fire.” On the Mohs scale, the topaz comes with an 8, meaning diamonds and corundum are tougher than Topaz.
Properties
Moh’s hardness: 8
Chemical composition: Al2SiO4(F,OH)2
Refractive Index: 1.609-1.643
Reflective Index: 29-32
Dispersion: 0.0014(0.008)
Transparency: transparent to translucent
Topaz: History
The specific discovery of topaz was never actually confirmed. As declared at the start, it came from Sanskrit or maybe greek. Archaeologists assume that the topaz found on the island was not true; rather, topaz but the gemstone called peridot.
The topaz has been acknowledged for its mystical properties. The Indians consider that the topaz stone can be used as a charm for strength, attention, wisdom, and avoiding death.
Topaz: How blue Topaz is formed
There are several techniques for making this, but they all involve strafe the Blue topaz with high-energy radiation. This activates the color centers within the Blue Topaz gemstone, giving the magnificent blue shade that’s so beautiful. Once the color centers have been initiated, the gems need a heat method to ‘lock’ the hue. Scientists and gemologists can even watch the many variables of this method to measure the fullness and richness of each blue topaz.
One common technique is named the London process. If you’ve ever looked at London blue topaz jewelry, that is where their gemstones come from. This method involves putting the topaz in a nuclear reactor. Rather than light radiation, the topaz is put following pressure neutrons preferably. This gives an even more vibrant blue color, which appears completely bright. Some cons of this process, however, is that the gems require to place still for nearly half a year before they’re no extended dangerous. The nuclear regulatory commission (NRC) assures that they’re 100% sound.
Because it’s such a controlled process, blue topaz gemstone rings can be trusted to achieve amazing colors every time. As the cost of such techniques lessens over time, these jewelry have become frequently affordable, as in you can get a bright sky blue topaz jewelry with no concern about your funds.
Topaz: Treatment and Care
The blue topaz stone is a well-known gemstone, but because it is very seldomly encountered, many methods have been used to extract them. This is the logic for the slump in current years of blue topaz. Here are some following steps people have managed to improve the quality of the topaz stone.
Temperature: This is a traditional style employed in most gemstones. Blue Topaz gemstone has been heat-treated to enhance tone for decades, perhaps even ages. This technique has been managed regularly to create blue topaz stones and pink and red topaz stones, which are prevalent.
Reflection: Irradiating topaz was a procedure discovered several years ago to create the blue topaz stone. Approximately all of the blue topaz in the shops now have been illuminated in this style. In Europe, the procedure is questionable and about to getting outlawed because of the potential residual radioactivity of the blue Topaz gemstones.
Diffusion: Another way of enhancing the tone of topaz stone requires coating the transparent topaz stone with a special element and then heating it at very high warmth. Particularly the outside layer of the topaz stone is changed while the center remains neutral (you would not be able to guess until it cuts into half). This is a comparatively reliable treatment.
Coating: Some topaz stones like sky blue topaz are dressed by a thin layer of metal or mineral elements and later stored in a vacuum. This method creates sky blue topaz, an extensive variety of bright, eye-catching shades. They are termed “Mystic Topaz,” and fresh words are invented every other week.
Synthetics: Synthetic topaz is not very popular in the market because natural topaz is so convenient. Synthetic topaz can be seen at the equivalent value, if not more valuable, than natural topaz. Most goldsmiths will tell whether it is synthetic or not.
Imitation: Topaz is duplicated by quartz (citrine) and glass. A scratch test can detect certain since topaz is stronger than these substances. If you brush a piece of quartz against a topaz, the quartz will scratch, but the topaz will remain the same.
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