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Mineral Specimens with Elbaite
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5.3 x 0.8 x 0.8 cm. A superb gem, gorgeous crystal of tourmaline from Paprok - stunningly bright and fine. It has a grassy green body and culminates in a fine bright pink termination. Complete all around and undamaged, with super luster too, Weighs 10 grams. Ex. Steve Smale Collection.
2.9 cm in largest dimension. From the collection of David Mansfield, a set of five slices from rare-colored crystals of tourmaline from the Otjua Mine. One has a teal core wrapped in green, another combines pink and mint colors; another is just like watermelon - etc. All very pretty and polished on one side to bring out the beauty.
10.8 x 8.9 x 8.2 cm. This large combination piece of quartz and several bi-colored tourmalines weighs 773 grams. It features two tourmalines to 5 cm each, one with its tip embedded in a quartz (you can see inside the quartz to view it); and one with a freestanding prismatic termination. The contrast of terminations is interesting. Mined in 2006, this was from the end of the modern Pederneira workings.
9.6 x 8.1 x 5.4 cm. This unusual specimen features a tourmaline crystal perched on the side of unusually sharp feldspar crystals for this locality. The feldspar matrix itself is superb. But what is really fascinating is the extreme degree of "bending" of the tourmaline, showing the effect of a natural process that happened in situ, of breaking and re-healing during growth. This repeated process results in strange bent crystals of tourmaline, which are normally only small things from other localities but from the highly disrupted Himalaya pegmatites can reach good sizes such as you see here (just over 2 inches long). Ex. William Larson Collection (Larson operated the mine for 30 years and owns it still).
4.3 x 2.7 x 2.5 cm. This is a 52-gram crystal of intense pink tourmaline, the hue the Stewart mine was famous for in the early 1900s for carving rough - most of which went to China and got carved up. Although the mine produced these sporadically through later years, classic ultra-pink Stewart crystals like this are rarely available now. This particular piece is from the George Elling tourmaline collection, and is complete all around except a small portion of a back flange which is broken off, and a very trivial bit of edge wear on the back side around that point. It is pristine from the display view and sides. To those who know the color firsthand, this is not just a normal pink color like from the Himalaya Mine or Brazil. It is distinct, immediately recognizable to the trained eye.
5.4 x 5.2 x 1.5 cm. This is a superb combination piece, probably from the 1960s-1970s, of gem blue-green indicolite tourmaline perched on a floater quartz crystal. The tourmaline is 5.5 cm long, perfect on the termination, and totally 100% transparent. The piece is simply striking. Ex. Dave Michaels Collection.
4.4 x 0.8 x 0.8 cm, 3.3 x 0.6 x 0.6 cm. Two beautiful gem crystals of tourmaline from Paprok. They have the "traditional" grassy green bodies with bright pink terminations (excellent terminations, by the way). Superb luster.
7.8 x 3.5 x 2.5 cm. A big crystal of bright pink Himalaya Mine tourmaline. This crystal just lights up like neon under good light. That is a natural internal fracture you see running across the middle and not a repair. The top termination is quite fine, with a very small bit of pocket contact in one place on the back edge. The bottom termination is intact (naturally healed), so this is technically a floater. You can see patches of lavender lepidolite decorating the lower portion of the crystal. Weighs 164 grams.
7.0 x 4.0 x 3.0 cm. This is an odd tourmaline of very unusual form and habit for Brazil, looking more like Afghanistan material to my eye. It is multicolored, and splays out dramatically from a slim base. 134 grams. Rarely seen material from this small tourmaline mine.
4.1 x 2.8 x 2.3 cm. This is a 54 gram deep green tourmaline with intense color, fine termination, and under strong light an intense blue band atop - most unusual for a Brazilian tourmaline.
4.7 x 1.5 x 1.3 cm. A fine, 20 gram tourmaline crystal, classic for the Pederneira Mine.
6.1 x 2.3 x 2.1 cm. A striking column of intergrown, watermelon-pink tourmaline crystals from the Cruzeiro Mine of Brazil. The crystals at the base have a strange, tabular crystal form, like uvites from Brumado. This specimen is complete all-around and is very nearly pristine. This is classic, old, 1960s-1970s material from this renowned locale. Ex. George Elling Collection.
4.0 x 1.9 x 1.7 cm. A sharply terminated, gemmy and lustrous, polychrome tourmaline from the famous pegmatites at Virgem da Lapa, Brazil. This classic, old-time specimen is from the early mining in the 1970s. The base is a very dark purple, grading upward to a very gemmy, light lavender. The termination is a pleasing light green. Weighs 24 grams. Ex. Jamie Bird Collection
8.2 x 7.1 x 5.0 cm. A very rare, unique and very showy herderite, tourmaline and lepidolite specimen from Paprok, Afghanistan and the Marty Zinn Collection, #7925. Gemmy, pastel-green, arrowhead-shaped herderite crystals abound on the matrix, which includes very gemmy, green tourmaline crystals to 2.1 cm and very light lavender to tan lepidolite crystals. The dominant 2.8 cm herderite crystal is striking and there is a 5.2 cm horizontal crystal. All of the major herderites are pristine. Herderite is not listed as coming from Afghanistan, but Marty has many direct sources, that very few in the mineral world can hope to obtain. Marty is generally considered to be the preeminent mineral show promoter in the world and thus has early access to many unique finds. The tourmalines appear to be a typical, green Paprok varietal and not like any general Brazilian tourmalines.
4.0 x 1.0 x 0.8 cm. A pristine gem crystal of tourmaline from Paprok, Intensely gemmy from bottom to top, with the classic bright green body and pink termination. Bits of natural mineral inclusion in surface of termination. Weighs 6 grams.
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Rob Lavinsky, rob@irocks.com
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