The Compendium of Caraka 6.15.85

6.15.85

saindhavaudbhidasāmudrabiḍānāṃ romakasya ca/
sasauvarcalapākyānāṃ bhāgāndvipalikān pṛthak//

and rock salt, earth-salt, sea salt, biḍa salt, romaka salt, / together with sauvarcala and pākya salt, two palas of each separately;