Research Papers

Chemical Characteristics of Freshwater and Saltwater Natural and Cultured Pearls from Different Bivalves

DANAT research detailing the chemistry of more than 1000 samples from different molluscs was recently published. Samples from freshwater sources were found to contain more manganese and barium than their saltwater counterparts. On the other hand, samples...
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Experiments in using atypical ‘beads’ and mantle interference in the production of cultured pearls with Australian Pinctada maxima

Since approximately 2010 a practice has been developed of using low quality natural pearls as the substrates for cultured nacre growth – natural pearls used as ‘beads’ in the production of ‘bead’ cultured pearls.
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