11 ms·Acid test, teeth indentation, maliablity (sp).by egberts1 2y agoAcid test, teeth indentation, maliablity (sp).Rhapso 2y agoThose are things you do to gold, not with gold. How would they help?egberts1 2y agoThose are ( along with other OP’s suggestion of water displacement density test) are used to test the gold apart from “fool’s gold” variants.