Check the listing for details. authentic turquoise cross.. Condition: Used. Listed at 8.50 USD. The product is a piece of rough stone that is ideal for cabbing, a process used to create smooth and polished stones for use in jewelry or as decorative pieces. This lapidary material falls under the category of rocks, fossils, and minerals, making it a valuable addition for collectors or enthusiasts in the field of mineralogy. Its natural beauty and potential for crafting unique pieces make it a sought-after item for those interested in the art of lapidary.