Calcite - Grängesberg, Sweden

Good thumbnail specimen of hexagonal Calcite from Grängesberg in Sweden. Good terminated single crystal with a passenger crystal. Better in person. This Swedish locality is known for interesting Calcite crystals with a bright almost neon-red fluorescence in midwave UV-light (310nm). Rare material.

Measures 1.1 x 0.7 x 1 cm.