Mineral Gallery II

BARITE, Frizington, Cumberland, England. The barite of a pale, geenish-grey color is superbly crystallized on a small matrix of hematite. It retains an old “Dr. A.E. Foote Philadelphia” and is, most likely, part of the large collection of English minerals that Foote brought to the United States in 1891. This one found its way back to the United Kingdom and became part of the A K Borland collection. On an Alec Madoff base. 4-1/2x3-1/2x2-1/4. $3,000.

CHALCOPYRITE on QUARTZ, Ellenville, Ulster County, New York. This is an important early specimen. The Ellenville mines were worked, for lead and copper, as early as the late 17th century by the local Dutch settlers. This specimen with its matrix in a rather-even “cobbed” shape probably dates to the early nineteenth century. Such cobbed specimens (cobbing is the practice of cleaving matrix into square or rectangular shapes) were especially in fashion in geological museums. The chalcopyrite is nicely crystallized and the mostly-transparent quartz crystals are quite perfect. 4-1/2x3-1/2x2. Sold.

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QUARTZ, Minas Gerais, Brazil. An unusually developed quartz specimen. A choice, compound, undamaged, slightly-etched, colorless crystal that measures around 2 inches is entirely surrounded by a halo of small amethystine quartz crystals of another generation. One might expect to see a specimen like this from Rio Grande do Sul or from Artigas, Uraguay but its pegmatitic origin makes it most rare. 3-3/4x3-1/2x1-1/2. $1,000.

RHODOCHROSITE, Capillitas Mine, Catamarca Province, Argentina. The most unusually treated stalactitic mass of rhodochrosite that I have seen. Instead of making many complete cross-sectional slices as is customary, this adventurous lapidary drilled six shallow, circular holes from 1-1/4x1 to 2-1/4x1-1/2 inches into the mass, polished them and produced a very special work-of-art.
4-1/2x4-1/2x3-1/4. $5,000.

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SIEGENITE, Buick Mine, Bixby, Iron County, Missouri. One of the largest and richest specimens of siegenite that I have owned. The large face of matrix is very well covered (about 50%) with minute crystals of siegenite along with a few 1/2 inch galena crystals. 5-1/2x4-1/4x2. $1,750.

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Lawrence H. Conklin
Wallingford, CT 06492
203-793-7667

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