I would be very grateful if you could take a look at the photos of the 5 bangles and 3 pendants I have sent, to see if they are Type A jade.
The sound test for bangle 1 & 4 are high pitched but not very resonant, 2 is high pitched and resonant, while 3 & 5 are echoing medium pitched. Not sure if this info is useful.
Thanks so much for your help.
It would be difficult to assess whether a jade piece is Type A or Type B just by looking at pictures. So I will venture my opinion based on many thousands of samples I have seen. The comments of each of the jade piece is posted on the pix as caption.
Please note that this is just an opinion and I would give it only an 75% significance percentile. The only way to determine whether a jadeite jade is Type A or polymer impregnated is by means of an FTIR test.
However, I can say for certainty that all your jade pieces are Jadeite Jade because of the distinct structure as seen from the pictures.
Since you are from Singapore, I have a suggestion that will make your tests cheaper. You can go to a gem lab to have it tested. If you do not want a lab report you can ask the gemologist to run an FTIR test on the jade piece.
A jade report from a lab may cost you S$250 to $350, however, if you just want an FTIR run then it may cost you $50, depending on the lab charges.
These are the 2 gem labs which are reputable:
1) Far East Gemological Laboratory
2) Nan Yang Gemological Institute.
Thank you for your interest. I will answer your next question from your email in another posting.
Category: Jade Bangles & Carvings