close-up of its surface - looks (and feels) like side ...
Description: close-up of its surface - looks (and feels) like side growth of many tiny crystals to me. not usually seen with elmwoods (i'm assuming the glassy luster is much more coveted) but doesn't seem to be out of question for the locality: https://throwinstones.com/products/8-3-inch-extra-large-golden-honey-calcite-on-sphalerite-from-elmwood-tennessee-usa-17421 and http://www.tigerowner.com/nonfluorescents/elmwood/ELMER6102.JPG