No. 2 · Friday, October 23

Guess the stone of the day

Look closely at the photo: which of these four stones is it? One answer a day.

FAQ

How do I play?

Look at the photo of the mystery stone and choose its name among the four suggestions. You get one answer a day; the hint gives its mineral family and hardness.

Does the stone change every day?

Yes, a new mystery stone is chosen every day at midnight (Paris time). It is the same for everyone.

Why do some answers look alike?

The wrong answers are picked among similar stones (same colour, same family): that is exactly how you learn to tell them apart.

Guess the stone of the dayOne photo, four answers, one chance a day.Play →Which stone are you?5 questions to find your stone and design your bracelet.Play →My stone albumEvery stone you discover is added to your album.Open →My badgesEarn badges and level up, from Novice to Stone keeper.Open →