A study conducted by Dr. Azriel Yechezkel of the Hebrew University of Jerusalem and his colleagues from the Hebrew University and Tel Aviv University, published in the journal Archaeometry, discovered the largest known cave pearl deposit in the southern Levant. What makes these 50 cave pearls so unique is that some of them contain archaeological artifacts, making them the first in the world to contain man-made objects.Cave pearls? Well that's something different. The pottery cores over which they accumulated seem to date mostly from the late-Persian to Hellenistic and the Byzantine eras.Cave pearls are a type of speleothem found in caves. They are round, pearl-like formations usually between 0.1 mm and 30cm long. They form around central nuclei, such as sand grains covered in layer upon layer of mineral deposits.
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