The industry calls this jade "tumbler", a polycrystalline aggregate of calcium aluminum garnet, also known as South African jade or Delaughan jade, commercially known as "Qinghai Cui".
Appearance features: glass luster, poor head, translucent to micro-transparent, generally good transparency. Green is spotted or striped. The hardness and feel are similar to those of jadeite. It is easy to mix with the emerald of the earth, and overlaps with the density of Burmese jade. It is difficult to distinguish by the weight method. The refractive index is 1.71-1.72. Often black chromite, this spot is also an important feature in the identification of water calcium aluminum garnet.
Green water calcium aluminum garnet imitation white blue
The green water calcium aluminum garnet has a granular structure, which is different from the fibrous granular crystal structure of jadeite; the color is agglomerate, which is very different from the green root color distribution of the emerald green, and the green water calcium aluminum garnet is small. Black spot (as shown below)
Yellow water calcium aluminum garnet imitation jaundice
The yellow-water calcium-aluminum garnet collection from Myanmar is also very similar to the yellow peony. The water-calcium aluminum garnet exhibits a stronger luster than the jadeite because of its higher refractive index than jadeite. Seeing whether it has "green" and refractive index (1.72-1.74) is obviously different from jade (1.66). The yellow water calcium aluminum garnet has a fine texture and is densely packed. The grain is invisible to the naked eye. There is no emerald green and bean-like; the color is uniform and there is no color banding of the jaundice.
Yellow water calcium aluminum garnet - looks like jaundice
In fact, the water calcium aluminum garnet is more difficult to distinguish from jade with the sturdy method and the gloss. I think it is still necessary to distinguish the characteristics of the jadeite.
A simple way to distinguish from jade:
1 is slightly heavier than the emerald, and there is a feeling of getting started.
2 polished polished face, it looks a lot brighter than jade. Because of its high refractive index.
3 The surface of the jade can be seen as "flying wings", the jade is green and the water is calcium and aluminum garnet.
4 jade is a fiber interwoven structure.
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