lithomancy
/ˈlɪθəˌmænsi/
noun
- Divination or fortune-telling by interpreting the appearance, arrangement, or movement of stones or gems.
- The museum exhibit explained how lithomancy was used by certain tribes to predict weather and harvests.
- In ancient times, some cultures practiced lithomancy by casting stones and reading their patterns.
- She studied lithomancy as a hobby, learning to interpret the colors and shapes of different crystals.