This is the tip of a large kunzite crystal (130 * 30 *5 mm) in halogen light, 365 nm Convoy S2+, and MW-UV respectively. When lighted with halogen from below, through the base of the crystal along the c-axis, the color deepens dramatically, due to pleochromism. The...
At the Maui Ocean Center in Malaea... Not to be missed: fluorescing coral! Quite a few species appear to fluoresce in long wave UV. Strictly speaking they're not minerals yet, but they could be found as such in a few eons.This article was originally published on...
Diamonds can fluoresce in almost any color. A little creativity ... and there we are.This article was originally published on Nature's Rainbow by Axel Emmermann.
Colorless beryl, var. goshenite, which is permeated with very fine scheelite dust and thus fluoresces in shortwave UV. Xuebaoding Mine, Pingwu, Sichuan, China. This spectrum compares the emission of a scheelite specimen to that of beryl var. goshenite. The...