Here you will be taught how to make those trendy crystals.
Pick a shape from the create menu. I made a sphere.
Go to the modify tab. The 2nd icon on the left in figure 1. Then click the on the modify list (figure 2) and scroll down until yousee noise.
Now in the noise parameters use these settings. Play around with the settings to get other abstract shapes.
Now go to render > material editor. The settings with red arrows are the setting you should play around with.
Once your have everything set click this icon this will place the texture on to ur shape. (Make sure your shape is selected) Using the settings I posted below my render came out like this.