is a variety of fine-grained coal
, sometimes known as boghead coal, named after Torbane Hill in Scotland
. Other major deposits of torbanite ar found in Pennsylvania
, USA, in the Transvaal
of South Africa and in the Sydney Basin
. Torbanite usually occurs as lenticular masses, often associated with deposits of coal, and is classified also as lacustrine
type oil shale
Paraffin oil can be distilled from some forms of torbanite, a process discovered and patented by James Young in 1851.
Torbanite typically comprises 88 percent carbon and 11 percent hydrogen.