Rust & Tea, Rust Dye-ing #3

Working with a group, we did some rust-dyeing. I added a used tea-bag, just in one place; the orange/rust patterns.
I like the grey/black colour, and the striations on the fabric.

Currently there is a scrap of fabric soaking in tea-bag dye. Every time I make a cuppa, I add the tea-bag to the pot! What will it come out like???? More alchemical kitchen!