A VERY RICH and unusually large specimen of montroydite, a rare Terlingua mercury mineral! The piece has a thick vein running through it, and is rich with microcrystals on attractive contrasting calcite. The dark red is the montroydite and the orange mineral is kleinite. Edgar Bailey was a noted mineralogist and field collector of Terlingua minerals, and the species Edgarbaileyite is named after him in honor. This is from his collection and was self-collected by him, part of a suite of such pieces (not from Feinglos coll.)
Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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