1. Feasibility Study of Multi-Critical Element Extraction from Pennsylvania Mercer Clay Restricted Author: Gill, Jesse Title: Feasibility Study of Multi-Critical Element Extraction from Pennsylvania Mercer Clay Graduate Program: Energy and Mineral Engineering Keywords: Critical MineralsCritical ElementsLithiumRare Earth ElementsMercer ClayLow-grade resourceSecondary ResourceRecovery File: No files available due to restrictions. Committee Members: Sarma V Pisupati, Thesis Advisor/Co-AdvisorMohammad Rezaee, Committee MemberJeremy Gernand, Program Head/ChairBarbara J Arnold, Committee Member