Nope, in Stonecraft are many features you won't find in Minecraft (vanilla version) and it's open-soure (c++ and not java) and free of charge. I have Minecraft too, and I want make things different. Try it out and make your own optinion, Or let it be :D.
I swear to god that spider texture in one of that screenshots is almost 1/1 ripped of a texture pack i used in minecraft.
There are so many Minecraft clones out there so you decided to make another one ?
Because textures are only slightly different. Gameplay is almost the same and the fact that its free doesn't make it better.
Buy Minecraft. On HRK its 1,34€. You get all mods and modpacks aviable for minecraft (Which are way more than for these minecraft clones). You get regular updates and compatible texture packs and a multiplayer with thousands of players on each of the million servers. (Yes, that was a hyperbole.)