If you thought gold leaf was neat, gold thread's even moreso. Gold also happens to be extremely ductile, meaning it can be stretched into a very long gold thread. One ounce of gold can be drawn into a thread which is 8 km long!
Gold has been used in embroidery for millenia. The art of embroidering using metal threads is known as Goldwork, even if the metal used isn't gold. Originating in Asia, Goldwork has been prized for the way light shines off the clothing. It was often used for royalty, military and religious clothing, as well as for artwork.
If you have some clothing that contains goldwork, enjoy it! Cherish it! But whatever you do, don't wash it unless absolutely necessary! The metal threads are very delicate and can't withstand frequent washing.
We hope you've enjoyed this fun fact about gold!