Anyway,lets get on with the tutorial :
These are the nail polishes I used: A black matte nail polish (but you could do with just a regular black,doesn't have to be matte), Purple polish with shimmer to add dimension,and a silver shimmer polish.A dotting tool and a small nail art brush (if you don't have any you can use a needle or a toothpick)
Step one: Paint 2 or 3 coats of black nail polish.Apply thicker coats,it will make the end result better.
Step two: While the polish is drying take your dotting tool and make dents all over the nail,it doesn't have to be neat,the more mess you will get a better effect :)
Step tree: Take a nail art brush and press and drag to create irregular lines around the middle.Then use purple shimmer nail polish and dab it around the edges
Step four: Time to use the silver nail polish.Clean off your nail polish brush so you are left with just a tiny bit of polish on and start dabbing it over the dents you made.Don't over do it,you should still be able to see the black and some purple underneath.At the end it should look rough and with cracks, just like the old stone surface.I didn't use a top coat.
And there it is,it is super easy to do,you don't need to be expert in nail art to do it,it is a messy nail art that looks cool :)
Hope you like it,let me know if you try it out :)
Love and kisses:***