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, however, these features eventually disappear without a trace. For paleontologists, the fossils formed.....more
. Elephants trace their ancestry back to the Moeritherium that appeared 55 million years ago.....more
of trace amount of selenium (Se)and tellurium(Te). Cinnabar has the bright red color and streak, high.....more
. Pure form is a transparent crystal; multicolor is presented when containing other trace elements.....more
