Report on the chemical qualities and analysis of a combustible mineral substance from the Mersey River, Tasmania, forwarded by Mr. A. McNaughtan, of Hobart Town

A report written by Professor Penny, Professor of Chemisty at the Andersonian University, Glasgow and read 13th of September 1854 before the Royal Society of Tasmania. The report states, this mineral consists essentially of a mixture of silicious sand and clay, with a combustible fossil substance, resembling resin. It also contains small quantities of water and iron pyrites, (sulphuret of iron). Under the microscope the leading ingredients may be easily recognized and distinguished. When heated in the open fire it readily kindles, and burns with a bright voluminous flame.