are ikea tealight candles made of paraffin wax?

If you mean the unscented Glimma ones, they're paraffin and vegetable wax. Ikea's website has excellent product descriptions, if you look at the item online, scroll down and click on some of the categories.

It’s made from paraffin/vegetable wax. I’m surprised because I thought they were made from animal ear wax.

Swedish ear wax.