As a kind of natural gemstone, turquoise is also good or bad. Natural turquoise has different colors depending on the elements it contains. What are the characteristics of turquoise that are worth collecting? Here is a small series for your science.
Look at color texture
Turquoise is a phosphate mineral aggregate of copper and aluminum, which is blue-green. The colors vary depending on the elements contained. The uniform color, soft luster, dark blue and oil-green translucent turquoise without black-brown iron wire are top grade, followed by sky blue, blue-green and light gray-blue. The difference in color has undoubtedly become an important factor affecting the quality of turquoise. Porcelain that looks like a glaze from the surface or a glassy one is considered a good product, and there are irregular iron wires, and the quality is slightly inferior. Some turquoise colors and textures are superior, but the surface of the spider silk pattern of iron wire, the quality of this turquoise is relatively higher. The value of white turquoise is lower than that of blue and green. It should be noted that when purchasing turquoise, the main color is not natural, and the price of dyed turquoise is much lower.
Look at porcelain
Porcelain is one of the most important factors affecting the price of turquoise. The degree of porcelain mentioned here is the texture of turquoise, that is, the degree of compactness and delicateness of turquoise. The higher the hardness of turquoise, the better the quality and the higher the price. The best texture is porcelain pine, followed by loose surface and loose pine. The hardness reaches a high degree of porcelain, and even if the color is not gorgeous, the price is very high.
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