The turquoise we usually know, she has so many kinds of classes! Let's take a look at the small series below!
First, by color
Divided by color, turquoise can be divided into sky blue, dark blue, light blue, blue green, green, yellow green, light green and other varieties.
Second, classification by structure
1 Crystal Turquoise: A rare transparent turquoise crystal with a small particle size and less than 1 ct of finished gemstones. It is known to be produced only in the United States of Virginia.
2 dense block turquoise: a dense turquoise aggregate with a Mohs hardness of 5-6, the appearance can be agglomerate, tuberculous, and the outer layer is taupe, dark brown, yellow-brown cladding. High-quality turquoise with bright colors, fine texture and no defects can be seen inside the cladding. Turquoise fractures are shell-like, polished like porcelain, so commonly known as "porcelain pine." This turquoise is the main material for the processing of jewellery and jade.
3 block turquoise: a kind of turquoise weathered to varying degrees, Mohs hardness is less than 5, the appearance is still agglomerate, the appearance is grayish white, gray-yellow cladding, the color of turquoise is generally light gray blue Light blue, green, etc., the texture is loose, the fracture is granular, and can be scored with nails, so it is called "face loose." Some blocks can be used as jade carving materials.
4 foaming: refers to the turquoise which is softer than the surface, the texture is very poor, is inferior, can not be used as jade carving material. This kind of turquoise is often used as a raw material for optimal treatment, mostly for artificial coloring and injection molding. If necessary, please add WeChat miaoyong194, buy jewelry and pay attention to the use of the WeChat public number miaoyong810, get relevant knowledge, will not be pit.
5 Dip-like turquoise: a turquoise that is impregnated and filled between the surrounding rock breccia. Turquoise itself often has a crushing phenomenon, which is plaque-like and breccia-like. There are very few cuts in the gemstone processing along with the surrounding rock, but turquoise is an exception. Dip-like turquoise is often cut with surrounding rock.
6 veined turquoise: specifically refers to the veins that appear in the veins of the surrounding rock.
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