We have lost a faithful contributor to The Canadian Mineralogist; it is the end of an era that came too soon! Tomas Feininger passed away on November 26, 2019. As Book Review Editor extraordinaire from 2000 to 2017, Tomas took it upon himself to evaluate new textbooks and major treatises as they appeared in the areas of mineralogy and petrology. He did so creatively and critically, to the point that assiduous readers would zero in on the back pages upon opening each new issue of the journal. Tomas had a very broad background, which motivated me also to invite...

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