Several teams are on the job verifying the quantum of ore, and subsequently there would be inspection of mining sites, Mines and Geology Department Director Prasanna Acharya told PTI.
"It will be difficult to restart the exports today... It will be possible only after the total (quantity of) ore is verified," Acharya said.
The state government suspended all the 90 mining licences recently following recommendation of Justice M B Shah commission which probed illegal mining in Goa.
Only the export of ore already lying at the jetties and mining sites is allowed, after its legality and quantum was ascertained.
Mines and Geology Department Assistant Director Parag Nagarcekar said that mining companies have claimed that total of 52.97 lakh million tonnes of ore is lying at 50 jetties.
The official teams had inspected 38 jetties till now, putting the amount of ore lying there at 13.56 lakh tonnes, Nagarcekar said, adding that inspection will continue this week as well.