This is from an old practice study of reflections and textures. It was made following a Ducky3d tutorial. 

I modified the texture on it further and added my own lighting. I wanted to show a piece of amber stuck inside a crystal.

The model was made following this tutorial.

The bumps and details were added using normal maps and procedural textures which are in Blender. 

Different colored lights were shone from the sides for the lighting of the scene.