Personnel
J. Robert Clark, Ph.D. Chairman, Geologist/Geochemist/CEO
Dr. Clark is the sole owner of Skyline Assayers & Laboratories. Dr. Clark is the inventor of the Enzyme Leach®, and he co-developed the MAGIC organic extraction system that has been widely used in a variety of analytical disciplines.
John “JP” Rosso President, ISO 17025 Quality Manager
Known as “JP”, his career spans 40+ years in non-ferrous metals refining and manufacturing, working with a broad & diverse spectrum of non-ferrous metals including precious metals, sourced from mining operations as well as secondary manufacturing scrap and other waste materials.
Throughout most of his career he has held simultaneous responsibilities.
Meagan Sias Laboratory Operations Manager
Meagan Sias has been employed in the mining industry since 2006. She has experience in management and quality control within several mining departments, including SX/EW, exploration, client services, and production samples. Meagan also has multiple years of experience with various laboratory instrumentation including ICP-OES and ICP-MS.
Mike Jacobson Chief Assayer, Arizona Assayer Emeritus, No. 52700
Mike has been with Skyline Labs since 2006. Graduate of the University of Arizona with a Bachelor of Science in Mathematics. Mike has over 10 years’ experience in laboratory operations, including precious metals fire assay technique, instrumental analysis by AAS, ICP-OES, ICP-MS, and analysis of Base Metals, Fluorine, Acid Consumption and Gypsum. Mike obtained his Registered Assayer Certification in 2011, and currently retains the status “Assayer Emeritus”.
Sam Kinslow Quality Control Analyst
Sam Kinslow is a graduate of the University of Arizona with a B.S. in Applied Mathematics. Sam has experience with statistical analysis, sampling theory, and quality control.
Bill Lehmbeck Consultant, Geologist, Arizona Assayer Emeritus, No. 9425
Bill was a former co-owner of Skyline Labs. Bill was Manager of the Tucson operation from 1973 through 2000, and has served as consultant to the laboratory since 2001.
J. Robert Clark, Ph.D. Chairman, Geologist/Geochemist/CEO
Dr. Clark is the sole owner of Skyline Assayers & Laboratories. Dr. Clark is the inventor of the Enzyme Leach®, and he co-developed the MAGIC organic extraction system that has been widely used in a variety of analytical disciplines.
John “JP” Rosso President, ISO 17025 Quality Manager
Known as “JP”, his career spans 40+ years in non-ferrous metals refining and manufacturing, working with a broad & diverse spectrum of non-ferrous metals including precious metals, sourced from mining operations as well as secondary manufacturing scrap and other waste materials.
Throughout most of his career he has held simultaneous responsibilities.
- Leading domestic and international business development teams
- Lab, plant & production management
- General management.
Meagan Sias Laboratory Operations Manager
Meagan Sias has been employed in the mining industry since 2006. She has experience in management and quality control within several mining departments, including SX/EW, exploration, client services, and production samples. Meagan also has multiple years of experience with various laboratory instrumentation including ICP-OES and ICP-MS.
Mike Jacobson Chief Assayer, Arizona Assayer Emeritus, No. 52700
Mike has been with Skyline Labs since 2006. Graduate of the University of Arizona with a Bachelor of Science in Mathematics. Mike has over 10 years’ experience in laboratory operations, including precious metals fire assay technique, instrumental analysis by AAS, ICP-OES, ICP-MS, and analysis of Base Metals, Fluorine, Acid Consumption and Gypsum. Mike obtained his Registered Assayer Certification in 2011, and currently retains the status “Assayer Emeritus”.
Sam Kinslow Quality Control Analyst
Sam Kinslow is a graduate of the University of Arizona with a B.S. in Applied Mathematics. Sam has experience with statistical analysis, sampling theory, and quality control.
Bill Lehmbeck Consultant, Geologist, Arizona Assayer Emeritus, No. 9425
Bill was a former co-owner of Skyline Labs. Bill was Manager of the Tucson operation from 1973 through 2000, and has served as consultant to the laboratory since 2001.
