If a speck on the glass has a shadow, that means it's beneath the glass right?

[XciteMe]

A couple tiny white specks on my iPad screen... Thought they were surface knicks but when you tilt it at an angle, there is a "duplicate" speck directly underneath it, like a shadow.

That means it's underneath the display???

 

[eawmp1]

Not if the surface speck is casting a shadow down onto the under layer of the screen. Under a light, look somewhat tangentially at speck and tilt iPad back and forth. It top speck moves less than bottom one it's a surface issue.