Clinochlore

Unknown Owner

Help improve this recordNo owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.

This is a significant, and surprisingly attractive, specimen of clinochlore from the old Tilly Foster Mine. According to Mindat.org: Large iron ore (magnetite) deposit discovered in 1810. The mine was 600 feet deep in 1879. Mining ceased in 1897, after 13 miners were killed in a rockslide. Specimens today are obviously hard to come by, and I know people who are dedicated to collecting Tilly material. Usually, you get chondrodite, and a few other species like clinochlore as mere associations. However, here it is definitely the dominant species, in a really nice, 3.2 x 2.5 x 0.6 cm, freestanding, crystal. It is easy to see the metallic green color. In fact, I cannot recall a clinochlore of this size, as showy, from any other locale? very OLD classic, Ex. Dennis Mullane Collection