It can also seep past the material, damaging nearby wood and weakening glue.If you are unsure whether or not your keys are pure ivory, look for a very fine, straight split on a key.

Read the forum discussion about pure ivory piano keys.

Related Articles on Cleaning Your Piano Compared to other pieces of furniture, the piano comes across as an indestructible beast. Cleaning your piano like you clean your kitchen table – no matter how precious the wood – can lead to exterior and interior damage, and an annoying dent in your wallet.

Learn the right way to keep your piano clean: Piano Tuning The piano is the least-tuned of all the stringed instruments.

The discoloration and yellowing of your piano keys is inevitable.

Many factors play a part, and some can be prevented by practicing proper piano care.

A professional should always handle severely stained or yellowed keys.

To whiten your discolored piano keys, follow these steps: Ebony and ivory are rare and precious materials.

Replacing keys made out of them is a very difficult, expensive, and time-consuming process, so extra caution should always be taken when dealing with them.

Tips found in both this article and the general key-cleaning article can be safely applied to ivory.