Available in many different crystals: 
Amethyst, Labradorite, Tigers Eye, Green Aventurine, Red Aventurine, Rainbow Agate, Citrine, Howlite, Lapis Lazuli, Obsidian, Carnelian, Unakite, Smoky Quartz, Amazon Stone, Persian Golf Agate, Yellow Aventurine, Quartz, Sunstone, Ocean Jasper. 
If there is a crystal not mentioned above that you would like to be made I will try my best to make it ☺️