Troy Sillimanite Mine

• Mineral Photos
• Location Map

Minerals Present

• Biotite: Black, disseminated plates or platy aggregates in the schist.
• Brochantite: Blue-green, small prismatic crystals.
• Garnet: Dark-reddish or brown to purple, dodecahedrons.
• Muscovite: Silvery or yellowish-white, disseminated plates.
• Phlogopite: Yellowish-brown, six-sided plates.
• Quartz: Gray, granular masses in pegmatite.
• Sillimanite: Yellowish-white, long, thin, fibers.