A very good specimen of tetrahedrite crystals formed in a domed mass on matrix with minor needle-like quartz heavily covered with pale tan siderite.
The individual tetrahedrite crystals show a fine bright metallic grey lustre with the crystals having tetrahedral but truncated habits. The specimen is free of damage and in excellent condition.
This was acquired by Harker in July 1975 via John Medici from the Carlton Davis collection.
Accompanying the specimen is a matching Carlton Davis label.
Carlton M. Davis (1920–2006) was a well-known American mineral collector from the Columbus, Ohio area, active especially from the 1950s onward. He built a high-quality, label-distinctive collection whose pieces and labels still circulate widely in the trade and in museum/online galleries. A long‑time member and show organizer in the Columbus Rock and Mineral Society,