Home » mineral specimen "Carroll County" Henryton "Devries Quarries" "Bob Conkwright" "Jeff Nagy" Maryland Geological Survey" collecting
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Tampilkan postingan dengan label mineral specimen "Carroll County" Henryton "Devries Quarries" "Bob Conkwright" "Jeff Nagy" Maryland Geological Survey" collecting. Tampilkan semua postingan
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An Humongous Maryland-Collected Ruby Corundum

Weighing 16 pounds, and measuring 8 1/2 inches x 6 inches x 5 inches and pictured above is the most spectacular and amazing Maryland collec...
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