Both a means of commerce and a store of wealth, gold and silver are used. They are referred to as currencies. Any asset that can be used to shift purchasing power from the current to the future is referred to as a store of value. It is not required for money that serves as a store of value to simultaneously serve as a means of exchange.
If a person wants to purchase products or services, this does not entail that the transaction must be conducted in cash. It is possible to make it electronically. Many physical things that customers purchase once and then sell are no longer available. The objects are only utilized once. Such items can be utilized as a form of value storage. For example, durable items, land, and so forth.