Why did natural jade bangles have some big black spots? 1 PC

Natural jade bangles have some big, unique black spots or blocks in their texture. Most of this black bangle is black color like black clouds. A small portion of the rest part is natural color. Why did natural jade bangles have some big, unique black spots or blocks in their texture. Such a kind of bangle is rare.

How were the black spots or blocks formed for natural jade bangles?

The main chemical components of jade stones are silicon dioxide, calcium oxide, magnesium oxide, iron oxide, sodium oxide, iron sulfide, and more. If the chemical components containing iron account for a large proportion, it will show a darker color. Therefore, the black spots or blocs in jade should be caused by the high iron content in this part of the stone. Of course, jade was in the oxidation zone on the surface before it was excavated. If the various chemical components contained in it would be changed under the combined action of moisture, temperature, and other factors in the environment at that time. So it is associated with oxidation reaction.

Hereby let us clarify something as below:

1. 1. Ø is the diameter. H is the height. T is the thickness (the distance from the internal diameter to the outer diameter). MM is the unit of millimeters.
   2. We took all images ourselves. Real objects are a little bit better than the images shown on the site due to our poor photography skills. Our real objects look dim in the images. So please understand it.
   3. Jade is a non-renewable mineral resource. There is no same texture inside of stone jade. It is impossible to find the exact same one.
   4. Due to manual dimensioning and weighing, the sizes and weights will be slightly changed.

There are a few jewelry categories for recommendation, like natural jade bangles, earring jewelry with 925-silver, natural pendants, and other craft decor. All of them are 100% natural and handcrafted with love and heart. Here we share the 6 best ways to tell Chinese green jade apart with you. If you are free to review our Chinese calligraphy brushes and round camphor wooden carvings, that will be great. Different opinions or comments will be greatly appreciated.

Item Number: NGJ-466.