Dexas Superboard Cutting Board, 8.5 by 11 inches, Midnight Granite Color (401-50)

The dexas superboard i have now is made of a man-made granite, like what's on a counter top, is this board made like the smaller one i bought?

Is the "granite" light gray or light blue? I already have a light blue one & "granite" looks light gray in the photo, but what arrived is light blue.

Folks are responding that thickness of this board is 1/3", or 1/4", or 3/8" or 1/2". How about exact from the SELLER? Anything else is unreliable.

Will it stain (for ex., from red bell peppers)?