Novel cultured pearls with ceramic nucleus and possible cause of their strong luster

A.Y. Shelementyeva, Y.B. Shelementyev, O.V. Yarapova Download Pdf

In 1955, the first report on Thai diamond was made by Dr. Payome Aranyakanon, a renowned tin explora

For many, fossiliferous tree resin, primarily amber, gained wide visibility to the public in 1993 wh