https://earthphysicsteaching.homestead.com/Monzonite.html
Monzonite
https://digitalcollections.franklin.uga.edu/nodes/view/31342
5-1-020: quartz monzonite - Ajo District - Ajo Mine | Franklin College Collections
District: Ajo | Mine: Ajo | Rock Name: quartz monzonite | Deposit Type: Porphyry Copper | Read the full record details for Geological Specimen: 5-1-020: quartz...
franklin collegequartz