Ariz. Admin. Code § 12-5-2001
A. "Common mineral materials" includes cinders, sand, gravel and associated rock, fill-dirt, common clay, disintegrated granite, boulders and loose float rock, waste rock and materials of similar occurrence commonly used as aggregate road material, rip-rap, ballast, borrow, fill, for general construction and for similar purposes.
B. "Natural products" includes all other products severed from the land including, but not limited to, water and plants but shall not include geothermal resources and those substances subject to the mining prospecting permit and leasing laws of Arizona.
C. "Royalty" means the monetary consideration representing the true appraised value of the common mineral materials of natural products.
D. For the purposes of any common mineral materials sales agreement, unless otherwise stated, the following terms shall have these meanings.
1. "Ton" is 2,000 pounds.
2. A "cubic yard" is a measurement of material that will fill a container that measures 1 yard by 1 yard by 1 yard and when a cubic yard is to be converted to tons industry accepted measures of conversion will be used.
3. "Annual production" is the number of tons of material that the Department determines is a reasonable amount to be extracted from the site in any 12-month period.
4. "Unit royalty rate" is the amount of money to be paid by the buyer to the Department for each ton of common mineral materials extracted.
Ariz. Admin. Code § R12-5-2001