By: Shirley Greenberg If you have a specimen in your collection labeled “Apache Tear” and want information about it, you could have a problem. Not all rock and mineral books have a listing for “Apache Tears.” This is because “Apache Tear” is not a valid mineral name but is a well-known nickname for some obsidian nodules. Obsidian is
Near Marysvale, Piute County Geologic information: The Marysvale area is dominated by Tertiary igneous rocks ranging from intermediate to silicic compositions with both volcanic and plutonic representatives. The especially thick volcanic section is thought to be the result of a large stratovolcano complex and associated calderas that existed during mid-Tertiary time. One of the common units