Teak oil or tung oil?

I'm building a dulcimer out of walnut with a zebrawood top. Someone told me that the only finish you can use on zebrawood is teak oil. Before I go out and buy some, I wanted to ask if anyone has ever used tung oil on zebrawood, and if it works okay, or if teak oil is okay to use on the walnut parts?

Thanks,

Molly McCurdy