Franklin Unknown #2 minerals and locations?

Hello again,

This is a second sample from the refrigerator. I'm thinking that it might also be from the Franklin District. The whole specimen is 8 cm wide. This time I'm pretty confident that the octahedrons are franklinite in the lower right. The white calcite is fluoresces a pink. Can anyone tell me if the pink might be rhodonite (or maybe a feldspar)? The hardness of rhodonite and feldspar are too close for me to separate them with the tools I have and I can't find any cleavages. I'm also wondering what the black mineral in the upper left could be? It is black but not metallic and appears to be hexagonal? in cross section (only 3 faces are present - the rest are buried in the matrix). Is it possible to narrow down the location on this one too (past the Franklin District)?

Thanks again,
Jen



Edited 1 time(s). Last edit at 05/09/2008 10:20PM by Jennifer Nemitz.

The mineral in the upper left could be gahnite, and if the octahedra are not metallic either, this is a possibility for them as well. I don't know much about Franklin minerals though, so I could easily be wrong...

The red could be rhodolite or possibly friedelite--hard to tell from the color on my screen, but rhodonite is probable. I think you do have franklinite. Have you thought of phlogopite for the black mineral in the upper left?

Looks like Rhodonite [pink crystals] in calcite with Franklinite and possible Augite [a pyroxene mineral, dark greenish-gray blocky crystals, not metallic like Franklinite though, Augite in a silicate mineral]. The opaque non-metallic mineral could also be Gahnite [ a zinc spinel] as NH suggested; hard to tell from your photo. That assemblage is very charecteristic of the Trotter and Buckwheat parts of the Franklin Mine, however, and could have come from these areas. Hope this helps.
Best Regards,
Phil.