#MinCup23 Round 1 Match 9 is a battle of archaic household items with thermometer quicksilver vs meerschaum tobacco pipes. Do you pick elemental #Mercury or clay #Sepiolite?
Vote: https://www.mineralcup.org/2023/campaigns/round-1-match-9
@MineralCup #sepiolite for its use on stone conservation, removes impressively many types of hard dirt with very low impact on the surface.