Mg textures

![image](https://cloud.githubusercontent.com/assets/2095625/3778970/50ebeab2-197c-11e4-89c7-15c3b19d7d1a.png)

![image](https://cloud.githubusercontent.com/assets/2095625/3778973/5b106482-197c-11e4-96a4-533ba01986b9.png)