Hophos III-2

Description of Site
During an orbit where the second moon of the third planet eclipses the sun, a great subterranean crystal lattice of a remarkable material emits an energy field that affects the thought patterns of living creatures and causes them to enter a dreamlike, meditative state. Stellar wind neutralizes the effect. Found by the Enterprise in 2301.

Other Notes
The mining colony is removing smaller deposits of the crystal scattered over the planet, which has uses in computing and transporter buffer construction. The main crystal lattice has been left alone and the effect it produces declared a protected natural wonder of the galaxy.