The art, science, or practice of carving and engraving on stone, gems, and other hard materials, including the study of such artifacts.
From 'glyptic' + '-ics' (field of study). This noun parallels how 'physics' or 'semantics' works—creating a discipline name from an adjective.
Glyptics as a discipline reveals incredible sophistication—ancient gem cutters understood geometry, optics, and material science so well they created works that still baffle modern engineers.
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