Xray Blocks

Cobble Stone Blocks Are Turning Into Xray Blocks , i created a new world a survival world i builded a house and then i was going into my mine that i made and i was minnig and then the Xray Blocks started to show up

Shows that no texturepack - http://www.bildites.lv/viewer.php?file=yrosvyrh98lo7vs2jcmv.png

proof - http://www.bildites.lv/viewer.php?file=fecidz8v3hvhvktzi6.png