S
Slraep
Guest
Here is an intersting page about how a labratory identifies certain
pearls by their pigments spectrographically. Example is of the pinctada margaritifera and the pteria penguin.
http://www.gaaj-zenhokyo.co.jp/researchroom/2005/2005_11-02e.html
Slraep
pearls by their pigments spectrographically. Example is of the pinctada margaritifera and the pteria penguin.
http://www.gaaj-zenhokyo.co.jp/researchroom/2005/2005_11-02e.html
Slraep