Dims:4.0x3.4x1.1" (10.1x8.6x2.8 cm)
Wt: 9.6oz. (271g)
Khibiny Massif, Kola Peninsula, Russia
Excellent radial sprays of astrophyllite are found in this specimen. The astrophyllite crystals permeate the entire matrix. The matrix consists of quartz, with some plagioclase, biotite, and amphibole present. Without access to thin section examination, I would call this a granodiorite. The astrophyllite blades reach 1.1" (2.8cm) in length and are golden-brown in color.