Tetrahedrite with Quartz (ex Brian Kosnar Collection)
- Casapalca Mine, Casapalca, Huarochiri Province, Lima Department, Peru
- Small Cabinet, 7.1 x 5.5 x 3.2 cm
- Start Time: 06/04/2009 6:15:00 pm (CDT)
- End Time: 06/11/2009 6:15:00 pm (CDT)
- Auction Closed
Years ago there were so many of these superb quality sulfides from Peru on the market, and they seem to have disappeared recently. This piece features several sharp, lustrous, metallic grey/silver color tetrahedral crystals of Tetrahedrite meausring up to 2.7 cm on edge. They are associated with some very gemmy, stubby, colorless Quartz prisms. There is one spot on this specimen where the Quartz crystals have formed a beautiful "flower"-like or "star-shaped burst" which is sitting atop complimenting Tetrahedrite crystals in a similar shape. I've tried to illustrate this in the photos, and it was not easy to do, but it's very eye-catching in person. With that said, this is a very good quality display specimen, and these pieces are becoming more and more difficult to obtain these days. Enjoy.