Natural Science Forum / Earth Science / Mineralogy / May 2008

Does anyone know the status of collecting at the Elwood mine area in
Tennessee.  It's near Carthage in Smith County.  Therre are numerous
references to material collected from these zinc mines, but there is
no evidence of any fee-pay or any other arrangement for collectors

I'm a biologist and I haven't understood how to relate cleavage planes
to atomic structure and unit cell of minerals, in particular of
hornblende. If I display the atomic structure of hornblende with a PC
program, could I predict the cleavage planes?