This is a fabulous piece of gem silica from the Concepcion del Oro area in Zacatecas, Mexico. This material was last mined in the 1980s, making it an Old Stock material.
Photos are taken DRY, what you are seeing is the true color of a dry rough stone that has not been worked in any way. Check out the photos taken with a flashlight to see how gemmy this material is! Also see pictures for dimensions and weight. US steel penny for scale.
We have many different types of stones, contact us for custom orders or to combine and save on shipping- we definitely do volume discounts. Also, if you are in search of a particular rock or mineral, we might have it on hand, and if not, we might be able to find it for you! Thanks for looking!