Granite Texture Tutorial

First make a new image, I made mine 500x500px.

Now press D to reset the swatches to it's default color.

Now apply a Clouds filter by going to Filters > Render > Clouds.

Next go to Filter > Distort > Glass and use these settings:

Now go to Image > Adjustments > Levels and increase the contrast so that it will look something like this.

After that go to Filter > Brush Strokes > Accented Edges and use these settings

Go to Filter > Brush Strokes > Angled Strokes now and use these settings:

Next go to Filter > Stylize > Find Edges.

And finally, go to Filter > Blur > Gaussian Blur with a setting between 1 and 2.

This is what I got with the above steps.

Click to enlarge