Ivan from Ho Chi Minh City, Vietnam sent me the following photographs for my comments. I presumed he would like to ask whether the jade that he possessed are Jadeite Jade and are they Natural Type A Jadeite Jade.
From the pictures I would infer that there are all Jadeite Jade pieces.
However, one cannot ascertain whether they are Type A Jadeite Jade or Type B Jadeite Jade. These jade have to be scanned using Infrared spectroscopy in order to determine whether they have been impregnated with polymer resins.
The jade rings are semi-translucent and some of them have some patches of green. These are of middle grade Jadeite Jade.
The lavender bangle is also semi-translucent. Color is of medium lavender and are quite evenly distributed with a small patch of darkish green. Color of this type is quite sought after by jade lovers.
You can perhaps do a sound test. Refer to this post: Jade Bangle, Hear Me Out.
This test might give you some indication on whether your bangle is Type A or Type B. But for confirmation you have to send to a gem lab for further testing.
You can use an Agate small rod to do the ‘Hearing’ test. I always keep this Agate piece handy and it is one of my important tools of the trade. You can get it for about $3 at any shops selling crystals or gemstones.
The pictures of the Lavender bangle shows that it was shot using natural daylight. The color if fact is quite good and it is quite difficult to find an evenly distributed lavender color. I do hope that yours is the Type A Jadeite Jade.
Thank you, Ivan
A Arthur Lau