Ulexite is a boron rich evaporite mineral. It forms long thin crystals, which act as a natural light pipe by allowing internal relection. Selenite displays a similar property, but only at certain angles of incidence (≥33∘), Ulexite displays internal reflection from all angles and is truly fibre optic.
For far sight and sharp focus. Brings that which is occluded to the surface. Helps one see all aspects of a situation clearly.
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