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Gemstone Fractures: Cleavage, Parting & Identification
Gemstone fractures may seem surprising because many people think of gemstones as nearly indestructible, but every gem has its limits. Even diamond—the hardest natural...
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Yooperlites: What & Where to Find Them
Yooperlites are fluorescent sodalite-bearing rocks found along the shores of the Great Lakes in Michigan’s Upper Peninsula and along Lake Superior. Collecting fluorescent rocks has...
8 Rocks Found on Lake Michigan Beaches
Lake Michigan beaches are home to the nation’s longest freshwater coastline (3,288 linear miles). Michigan is surrounded by four of the five Great Lakes...
