Hi Osprey To clarify. I believe you said previously the chloride...

Hi Osprey
To clarify. I believe you said previously the chloride ilmenite and slag were getting better prices.
So you mean chloride Imenite & slag is premium relative to lower TiO2 less digestable (higher polluting) suplhate ilmenite? (Which was the target of the furnace switch and reline).
I accept the Zircon coming from Grand Cote is cleaner viz contains less inclusions and produces a clearer glaze. That would be classed as premium.