Tumbling may unlock that window of "fire" that may be otherwise hidden in the rough "Fire" Agate Rough -Mix From the mines of Calvillo (Aguacalientes) Mexico, Slaughter Mtn.& Deer Creek,Arizona. Very beautiful material, nicer size, low to mid grade B&C Grades for the Beginner & experienced tumbling hobbyist. Very beautiful material, nicer size, low to mid grade B&C Grades for the Beginner & experienced tumbling hobbyist. "Fire" Agate Rough -Mix From the mines of Calvillo (Aguacalientes) Mexico, Slaughter Mtn.& Deer Creek,Arizona. Very beautiful material, nicer size, low to mid grade B&C Grades for the Beginner & experienced tumbling hobbyist. Full "fire" potential unknown until tumbled. Your stones will be typical of what is shown. Very beautiful material, nicer size, low to mid grade B&C Grades for the Beginner & experienced tumbling hobbyist.! Fire agate Takes an Exceptional Polish. Tumbling may unlock that window of "fire" that may be otherwise hidden in the rough. Each stone ranges roughly from 1/2" dia to 1 1/2" dia. colors include reds,browns, blues, purples, gold with occasional iridescent windowed colors.. Each Bag Averages 5-12 Chunky, Gemmy Pieces (depending on weight)-You will Be Very Happy! There is 1/2 pound of rough fire agate in each bag with modest matrix. Special agate.No Two bags the Same!