[5]: 105  An estimated 350,000 tons of iron ore were extracted from the old mines at Gol Gohar over the course of their existence.

[5]: 105 In 1969, the Iran Barite Company began exploratory work at the Gol Gohar site; this was then delegated to the National Iranian Steel Industries Co. (or NISIC), a government corporation that now operates under the name National Iran Steel Company.

[5]: 105  NISIC then entered into a joint venture with the Swedish company Granges International Mining to continue exploring the deposits.

[4]: 709  Above these are Mesozoic and Cenozoic sedimentary rocks and Quaternary alluvial deposits.

[5]: 106 The ore body itself is estimated to be lenticular in shape, about 2600 m long from east to west and about 400 m wide from north to south.