Brass is also called (in Dutch) yellow-copper, since it is an alloy of copper and zinc. It is an ideal metal for high friction parts such as gears, locks and musical instruments. We use this metal a lot for our jewelry for 3D printing. It is a beautiful yellow metal that is easy to work with and many times cheaper than gold.
This alloy was already known to mankind in prehistoric times, even before any zinc had been discovered. At that time copper was melted together with calamite, which is a kind of zinc ore. Once merged with the copper they got brass, actually discovered by chance.
Today, about 90% of all brass is recycled. So there is a good chance that your jewelry consists largely of recycled material.
From an energetic point of view, it brings out the inner truth and clears up the old rubble. It stimulates the immune system and gives courage. This metal is also sensitive to energies, over time it will copy your energy signature.
Tip: Brass can stain the skin green/blue, especially with rings. No worries, this is due to the sweat and is not harmful.
This is something to consider when you want to order a ring in this material.