JPMorgan Chase thought it had $1.3 million worth of nickel stored in a warehouse. A closer examination revealed bags of stones.

• JPMorgan Chase kept bags of stones in a warehouse thinking they were nickel, according to the WSJ.
• The London Metal Exchange revealed Friday that the bags contained stones instead of nickel.
• The owner of the bags is JPMorgan Chase, according to the Journal. 

The London Metal Exchange revealed a surprising mix-up last week at a warehouse in the Dutch port city of Rotterdam.

An operator for the warehouse weighed bags that were thought to contain 54 metric tons of nickel, only to find that they were filled with stones, according to The Wall Street Journal.