Calcite, Elmwood Mine, Carthage, Smith County, TN
description: The calcite crystal twin is 5" tall. Ex Keith Proctor and Dr Steve Neely collections. This piece was acquired via a trade with Keith Proctor in early 2006. In this trade, Robert Sielecki acted as my agent since I was unable to attend the 2006 Tucson Show in person. This fine mineral specimen consist of a lustrous, symmetrical, gemmy calcite twin blessed with a pleasing color. The twin is beset elegantly in the middle of a thin chert matrix. Note the twinning line in the midsection of the calcite twin. The twin is perfect aside from a minor rub near the twinning line. The "rub" is easier to feel than what it is to see. The heyday of production of fine calcite and fluorite crystals at Elmwood was definitely the 1980's. During these years, very large crystal lined pockets were encountered during blasting. Calcite twins too heavy for a man to evacuate from the mine were encountered! Post 1990, efforts to mine Elmwood for calcite and fluorite specimens were of limited success. Since the early 1990's, fine calcite crystals from Dal'negorsk and China appeared on the international mineral specimen market in unprecedented quality and quantity. Despite this, it would still be reasonable to argue that the Elmwood Mine is still the world's greatest calcite locality. There is absolutely no doubt that Elmwood produced America's best calcite specimens.

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