Knappenwand, Austria is a world famous mineral locality for fine Epidote-Byssolite and this is a nice specimen. It displays very delicate cluster of fibrous hair like Byssolite needles impaled on Epidote crystal. The Byssolite has green color and it is very sparkling. The Epidote is lustrous and has olive-green color. For references The Mineralogical Record, vol. 17, pp 167-181. The Epidote crystal is not complete. On acrylic base.

Knappenwand specimens are not common, always highly prized and this is a cool piece!