geomancy
Divination using soil, sand, or earth patterns. A specific term; the English equivalent 'geomancy' may also refer to other earth-based divination systems.
See also: ジオマンシー
Geomancy is a form of divination that judges fortune by patterns drawn on the ground or the state of the soil.
Compound of 土 (tsuchi, 'earth, soil') and 占い (uranai, 'divination, fortune-telling'). The exact historical origin is uncertain, but the term straightforwardly describes earth-based divination.