Definitions for "Conchoidal"
Keywords:  fracture, etymol, seashell, koi, choi
Having elevations or depressions in form like one half of a bivalve shell; -- applied principally to a surface produced by fracture.
"Shell-like," with a smooth curved surface.
(con-choi´-dal [con-koi´-dal]) — Said of a type of rock or mineral fracture that it gives a smoothly curved surface. Conchoidal fracture is characteristic of quartz and obsidian. Etymol: like the curve of a conch (seashell).
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