Rock Sample Preparation Technician

Company Description Cumbr Ex is a geoscience-focused organization specializing in rock sample analysis and preparation to support research, exploration, and laboratory testing. The team works with a wide range of geological materials, providing precise, high-quality sample preparation services that meet rigorous scientific and industrial standards. Cumbr Ex emphasizes safety, accuracy, and efficiency in all lab operations and values team members who are detail-oriented and committed to reliable, repeatable results.
Role Description This is a full-time, on-site Rock Sample Preparation Technician role based in Tucson, AZ. The technician is responsible for receiving, labeling, and organizing rock samples, ensuring accurate documentation and traceability throughout the preparation process. Daily tasks include cutting, crushing, grinding, and polishing rock samples using saws, crushers, and other laboratory equipment to meet specific size and surface requirements. The role involves cleaning and maintaining equipment, following safety protocols, and managing waste and slurry in accordance with environmental and lab standards.

The technician will collaborate with geologists and lab staff to prioritize workloads, prepare samples to defined specifications, and report any irregularities or equipment issues. Additional responsibilities may include basic data entry, maintaining inventory of consumables, and supporting continuous improvement of lab procedures.
Qualifications

• Ability to safely operate and maintain laboratory equipment such as rock saws, crushers, grinders, and polishing machines.
• Strong attention to detail in labeling, organizing, and tracking samples to ensure accurate documentation and chain of custody.
• Knowledge of laboratory safety practices, including use of personal protective equipment, safe material handling, and adherence to environmental and waste disposal guidelines.
• Basic mechanical aptitude and troubleshooting skills to identify and report equipment issues and perform routine maintenance tasks.
• Physical capability to handle, lift, and move rock samples and lab materials, and to work on one’s feet for extended periods.
• Competence with basic computer applications and data entry for recording sample information, preparation steps, and workflow status.
• Effective communication and teamwork skills to coordinate with geoscience professionals and lab colleagues in a fast-paced environment.
• Prior experience in a materials, geology, mining, or industrial laboratory setting is beneficial; vocational training or coursework in geology, materials science, or a related field is a plus.