system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do some rocks, such as jade stone, feel cool to touch?

I’ve tried to ask Prof. Google but to no avail. This question has been bugging me. An example is the jade stone in jade rollers, where the stone feel cool when out against the skin, no matter the ambient temperature of the surrounding environment.
gpt
You don't feel heat but heat transfer. So things that are good at transferring heat will feel hotter or colder depending on their actual temperature. And things that suck at transferring heat like cloth or wood will feel more neutral regardless of how hot or cold they are. It's the same reason why you can sit down in a 90°C sauna on a wooden bench but you would burn your bottom if those benches were metal or stone. And the same why your bathroom rug feels nice after taking a shower but the tiles feel painfully cold.