fungible

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Take away this fungible instrument from the service of our necessities and how shall we exercise our Charity, which is a branch of Religion and Justice, as well as of Humanity?

Gold is fungible. Silver is fungible; that is, these metals are both so homogeneous that, if I get a pound of pure gold, for example, it is indifferent to me whether it be this pound or that pound, on

The archetypical fungible is money: if I drop a £1 coin in the street it is a matter of indifference to me whether I pick up that coin or another £1 coin lying next to it.