This is a preview. Log in through your library . Journal Information Current issues are now on the Chicago Journals website. Read the latest issue.Speculum is the oldest U.S. journal devoted ...

Boulders of petrified wood, jade and quartz — each of them weighing about a ton — sparkle in the sun outside the Lizzadro Museum of Lapidary Art in Oak Brook. Tucked away in a suburban office park, ...

Regina and Jill Collins have been enjoying mother-daughter outings to the Lizzadro Museum of Lapidary Art for about 10 years. Regina, who was interested in polished rocks, first took her daughter, now ...