https://ro151788antagonist.com..../evaluation-of-chart
Here, dark pseudoinclusions in kidney-shaped emerald pieces from the Early Cretaceous (Albian) amber from Spain are examined. This sort of fossilized remain, abundant in Cretaceous ambers, was initially translated as fossilized vacuole-bearing microorganisms, but later seen as artifactual and probably released by the resinous woods, although their beginning remained unclear. Making use of complementary microscopy (light, electron, confocal), spectroscopy (infrared, micro-Raman), siz
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