A rare, old time example of native silver from Bisbee!!! This specimen consists of a
dark, massive chalcocite matrix that hosts several bright, leaf-like crystals of native
silver in association with dramatically compressed cerussite crystals!!! The native
silver is actually crystalline material, not simply massive leaf silver!!! The contrast
of the silver against the dark chalcocite makes for a rather handsome display!!! However,
upon further inspection there is much more going on here than it might first appear!!!
When I examined this specimen with the stereoscope I was amazed to find that these silver
crystals are actually pseudomorphs or epimorphs after the cerussite!!! The crystallization that the
silver exhibits is identical to the cerussite crystals and there are a few instances
on the specimen where they are actually intergrown!!! There are also a few minor areas of green brochantite present as well!!!
This specimen was recently trimmed from a much larger specimen and the newly exposed silver has a very lively tin-white metallic brilliance whereas the older, previously
exposed areas of silver have an somewhat "antique" patina to them!!! The resulting combination of patinas is quite striking!!! This specimen is simply amazing
in person!!! The pics hardly do it justice!!! Rare, old time material!!!
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