Mineral: Actinolite (variety byssolite) on Albite (variety pericline)
Locality: Guttannen, Interlaken-Oberhasli, Hasli Valley, Bern, Switzerland
Dimensions: 7.7 x 6.4 x 3.6 cm

Description: Small tufts of hair-like green byssolite fibers on a matrix of off-white albite crystals.

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