A Calymene trilobite I have been prepping for weeks now. Using a DSLR camera now but it needs a macro lens. Changes since last update used diluted hydrochloric acid on the limestone around the trilobite to smooth out engraver lines. Used a Dremel tool with two types of stainless steel brushes to clean limestone out of ridges in thorax. Also used brush to smooth out engraver lines. More touch up work using a needle tool and Dremel engraver to remove matrix around cephalon.
The end product looks gorgeous!
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