A few tips for using the Atlas

Buttons

	If this button is surrounded by a blue or magenta margin, clicking it will show you an image illuminated by plane-polarized light.
	If this button is surrounded by a blue or magenta margin, clicking it will show you an image illuminated by cross-polarized light.
	If this button is surrounded by a blue or magenta margin, clicking it will will you another photomicrograh of the rocktype, mineral, or texture.

A note for UNC students and TA's:

The color slides used to make the Atlas are available for instructional use. See Kent Ratajeski or Allen Glazner for these materials.