M me-hmmm Rough_Rock Joined Jan 30, 2002 Messages 3 Feb 9, 2002 #1 Understand feathers and pinpoints, but what's a "needle" on a GIA cert?
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Garry H (Cut Nut) Super_Ideal_Rock Trade Joined Aug 15, 2000 Messages 19,089 Feb 9, 2002 #2 An inclusion that looks like a needle. It is very simple.