Calcite on Quartz Stalactite

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Aesthetically perched high on an unusual and elegant stalactitic quartz matrix, are two doubly terminated and complete-all-around disc-like crystals of calcite, to 6 cm across (technically, flattened rhombohedrons). The calcites are lustrous, and translucent with an ivory color. The quartz matrix is coated with minor calcite and ankerite on front, and sparkling free of association on back so it looks good from either side. From the Slitt vein in Blackdene Mine, where it was in the collection of miner W.M. McGuire by the late 1960's when it was acquired by the Greenbanks. Illustrated in the Greenbank Collection book, page 74 (Joe Budd photo, shown bottom left)