drithëra
Drithëra is a mineral species in the silicate group, notable for its transparent to translucent crystals with a vitreous luster, hexagonal habit, and a faint blue fluorescence under ultraviolet light. It occurs as prismatic crystals up to a few centimeters.
The name drithëra derives from the Drith language for "shimmer" and was proposed by mineralogist Arin Reth
Mohs hardness around 6.0–6.5; specific gravity 3.2–3.6; refractive indices near 1.610–1.615; clear pleochroism in polarized light
Formed by metasomatic alteration of ultramafic rocks in high-temperature, high-pressure environments; associated minerals include talc, chrysotile,
Valued as a gemstone for small carvings and collectors; potential for lithographic optical components due to
Fewer than a hundred authenticated specimens have been reported; ongoing studies examine its trace-element patterns to