33904: Marcasite - $8 Mount Carroll Quarry, Mount Carroll, Carroll County, Illinois Miniature - 3.4 x 3.1 x 2.3 cm 37 grams Ex Ed Clopton Specimen status: Available Send an email with specimen number to order Bright and sharp marcasite crystals
are clustered on the matrix apex. Marcasite is especially
prone to decomposition, producing obnoxious acidic odors.
This specimen appears to be stable; I've had it a few
years and it is odor-free. Typical for the
species/locality. Ex Ed Clopton
(probably personally collected); his handwritten label
accompanies the specimen.
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