There are many types of rubies on the market. Some merchants will mark the processed rubies on the labels, while some unscrupulous merchants will shoddy the artificial rubies under the natural banner and sell high prices. So what is the difference between natural rubies and artificial rubies? let's figure it out together.
Natural rubies have strong dichroism, and dichroism has two shades of red and orange in different directions. If there is only one color, it may be red spinel, garnet or red glass.
Natural gemstones are “ten red and nine cracksâ€, and natural rubies without any cracks and cracks are extremely rare. The artificial ruby ​​has the same color, and the internal defects or crystal inclusions are small, clean, and the block is large. As a precious gemstone, natural rubies over 3 carats on the market are rare. If you encounter a large block of ruby, you should pay attention and may make artificial rubies.
The chemical composition of ruby ​​is aluminum oxide (Al2O3), which is red to pink due to the trace element chromium (Cr3+). The dichroism is obvious and heterogeneous. Sometimes it has a special optical effect - the starlight effect, which reflects the fascinating six-shot starlight under the illumination of light.
Therefore, as long as the ruby ​​is observed to have dichroism at the time of purchase, the interior is pure and clear, and if it is clean and inexpensive, it may be artificial ruby.
In summary, the method of identifying natural rubies and artificial rubies is believed. You must know something about it. For more details, please pay attention to China Jewelry Merchants.com .
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