Coal core libraries

The department has several drillcore storage facilities throughout the state.

Coal core libraries located at Gunnedah, Gulgong, Wyee Bay and Yerrinbool are managed by Coal and Petroleum Geoscience.

The mineral industry spends tens of millions of dollars on exploration every year, making a significant contribution to the state's economy.

Drilling is undertaken during mineral exploration to:

  • establish the nature of rocks in a prospective area
  • directly sample possible ore-bearing material
  • establish stratigraphic sequences in the third dimension

Drillcore samples are an important scientific and economic resource. They would be very expensive and in some cases impossible to re-acquire as the stored drillcore can contain materials that have been subsequently mined out or are otherwise unavailable.