A low poly crystal, comes with 1024x1024 color, normal, mirror, specular and emission maps, all PNG format!
Comes as one mesh.
It is 100% tris, may make the shading slightly funny( see orange crystal, 3rd and 4th preview image), but you may be able to convert those faces to quads if you want.
OBJ file comes with mtl file, but you may still have to do some modification to the material (adding the textures the mtl failed to load).
No LOD variants.
The rock uses smooth shading while the crystals use hard.
1 material to place the textures for rendering.
Also you can download the extra diffuse maps with orange, red, blue and purple colors.