Characterises the akoya cultured pearls produced on the eastern shoreline of Australia using native Pinctada imbricata fucata molluscs.
Read MoreCompares the image quality provided by real-time microradiographic imaging (RTX) units fitted with two different detectors: an image intensifier (II) and a flat panel detector (FPD).
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The distinction of natural from cultured pearls has traditionally been based on X-radiography.
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Dye treatments in yellow or “golden” cultured pearls have improved to the point where some samples show little surface evidence.
Read MoreThis study demonstrates how atypical absorption features, particularly in the blue region of the spectrum, can be used to positively identify colour treatment.
Read MoreBlack pearls have been found in Mexico’s Gulf of California since the area was settled more than 2,000 years ago.
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There has been considerable debate in the gem trade concerning the nucleation procedures being used to grow large round Chinese freshwater cultured pearls.
Read MoreAlthough the Pinctada margaritifera oyster usually is associated with the black pearls cultured in French Polynesia, it also can produce attractive large yellow cultured pearls.
Read MoreThis article describes the method of culturing these "pearls" as well as the differences between this material and 3/4 South Sea cultured pearls or assembled cultured blister pearls (Mabe pearls).
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