gold ingot

基本解釋

Dumplings carry a special significance of wealth as they are in the shape of the gold ingot used as money in the Chinese ancient times;
水餃的形狀像中國古時候用的元寶，具有「財富」的特殊意義；
This Blessings to World Expo Shanghai Commemorative Gold Ingot (200g) is made by authorization of the Bureau of Shanghai World Expo Coordination.
“世博祝福紀念金磚（200克）”經(jīng)上海世博會事務協(xié)調(diào)局授權(quán)制造發(fā)行。
It is split that electricity amasses the golden silver mud on steel cotton to use chemical method. The gold mud is smelted become alloy. after smelting, silver mud can get the silver ingot of 98%.
電積到鋼棉上的金銀泥用化學方法進行分離，金泥經(jīng)熔煉后得合質(zhì)金，銀泥熔煉后可得98%的銀錠。

There's no marginal utility in warehoused gold although I guess you can make an ingot into a door stop.
FORBES: Magazine Article