Where is the stone texture?

I am using the in-app texture maker to try and make my own ore. I located the Layer 2 ore texture I wanted to use for just the ore on the stone, but when I search all through the Layer 1 list over and over, I can't find the stone texture. I even typed in "stone" to try and locate it in the drop down, and all it came up with was "stick, slab" and "stonebrick" stuff. No normal "Stone" texture to be found. If the texture IS in here, can someone tell me the name in the layer list? And if it isn't why not? and how do I get it in there?

EDIT: I'd reply to the post below, but there is no reply button and when I try to press the "Reply to Topic" at the top of the page it just doesn't do anything. Klemen, the person that replied to this, you simply gave me a link that would search this site for "Stone texture" and there was nothing but more people asking where the texture is. This doesn't help me in any way.