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Mineral Specimens with Schorl
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4.4 x 1.9 x 1.5 cm. Two fine schorl crystals, jet black, and beautiful. These are complete-all-around and well terminated on their tops. One crystal shows a dislocation-offset, caused by pocket movement during the crystal growth. The effect is that the little portion atop looks like a top hat, being lifted up. Dimensions are for larger crystal, as given. Ex. William Larson Collection.
19.3 x 7.2 x 5.8 cm. This is an extremely impressive specimen, visually, and quite unusual for the county for both its size and display. Schorls from San Diego are rare. Big ones, all the more so. This is a 5.5-inch-long (14cm), doubly-terminated schorl, perched on a doubly-terminated quartz. The whole cluster is a floater, complete-all-around and fully terminated all around. Larson ranked this as one of the top schorls from the county, and certainly for a matrix piece it presents dramatically. Ex. William Larson Collection.
4.3 x 4.2 x 3.6 cm. Mexican schorl specimens of this sharpness and quality are rare. A 3.0 x 3.0 cm, sharp, highly lustrous and striated, jet-black schorl crystal surrounded by smaller crystals dominates this very fine specimen from an uncommon Mexican locale - Santa Cruz in Sonora. For the size it is a well balanced piece. Also, it shows none of the etching or solution effects which typically mar the lustre on such specimens. As proof of how good it is, it was in, and has labels from, the Dr. Fred Pough (curator, Smithsonian), Dr. Gene Meieran (noted tourmaline collector) and Evan Jones (specialist in Mexico) Collections.
4 x 4 x 2.4 cm. An aesthetic and unusual cluster of prismatic Schorl crystals, with some of the Schorls capped by highly fluorescent Hyalite Opal. The Schorl crystals are slender and have superb luster. You do not often see this particular habit in such a well-defined cluster, with equally good and large (over 2 cm) crystals. Ex. Charlie Key.
5.5 x 3.8 x 3.5 cm. An outstanding cluster of Aquamarine and Schorl from the Erongo Mountains in Namibia. While the lower Aquamarines are etched and heavily intergrown with the Schorls, the single large dominant crystal is superb for Erongo. The major Aquamarine is 2.5 cm tall and 1.8 cm across, and the upper 1 cm is gemmy and a gorgeous blue. The luster is glasslike, and the near-perfect termination has a fabulous, sharp notch because of an intergrown Schorl that impales it. This simple penetration adds great mineralogical interest to an already terrific crystal. Ex. Charlie Key.
7.2 x 5.5 x 3.5 cm. For sheer beauty and composition this is a superb schorl from Erongo. The interpenetrating Schorls are virtual twins - superb luster and form. The larger of the two, just by a bit, is 4.5 x 4.5 cm. Some small, gemmy Smoky Quartz crystals along the back and on the upper corner add a very nice accent to the Schorls. They are pristine, and fabulous. Ex. Charlie Key.
5.8 x 5.5 x 3.7 cm. A beautifully 3-dimensional cluster of gemmy and lustrous aquamarine crystals with vivid blue color; and fablulously accented with a 2.7 cm, lustrous, jet-black schorl crystal. The aquamarine crystals reach 3.1 cm. Very nearly pristine.
4.3 x 1.6 x 1.4 cm. A gemmy and lustrous aquamarine crystal with vivid blue color from recent finds in the Erongo Mountains. The termination area is much gemmier than the rest of the crystal, as is common with most Erongo aquamarines. This specimen is nicely highlighted by the tiny schorls embedded in the termination and the feldspar crystals at the base. A highly representative Erongo aquamarine with schorl.
9.2 x 6.8 x 5.4 cm. A fine combination specimen from the mid-1980s finds at Stak Nala, Pakistan. Four intergrown, bi-colored tourmaline crystals, projecting upward like smokestacks and up to 8.9 cm long, are aesthetically wrapped in bladed cleavelandite accented with quartz crystals. The lustrous tourmalines are schorls with gemmy, teal-blue indicolite terminations. The striking, 4.7 cm, glassy, transparent to translucent quartz crystal is doubly terminated and is nearly pristine. The expanding base consists of many smaller tourmalines, nearly all with broken terminations and rich rosettes of cleavelandite blades. This is a fine, complete-all-around combination piece from this noted locale. Ex. Saller Collection.
3.5 x 2.2 x 2.1 cm. Goshenite (colorless beryl) is actually amongst the rarest of the beryls. From the Erongo Mountains, you certainly see a ton of aquamarines for every goshenite that turns up. This complete-all-around, pristine and translucent crystal has smooth, glassy faces with crackly interiors. The scattered embedded schorl pencils are a very nice accent. You can see the aquamarine blue core on the cleaved base. Interesting.
5.4 x 4.7 x 3.9 cm. A fine, two-sided schorl specimen from recent finds at Erongo Mountain, Namibia. This highly lustrous, near floater specimen is unusual, in that many of the schorl crystals have sharp terminations, while the sides of the crystals are heavily etched in a stair-stepped fashion. Fascinating. This is an excellent, highly representative piece. The bit of starkly contrasting feldspar is a nice compliment. Ex. Wes Parker Collection.
8.5 x 4.8 x 4.6 cm. A superb 7 x 2.2 x 2 cm aquamarine here looks like it is about to leap off a well-trimmed matrix of schorl and albite. The piece is, for the size range, one of the most dramatic I saw of this new lot for those who like simple, stark dominant-crystal aesthetics. The aquamarine is freestanding on half its length, and is complete-all-around. It is nearly pristine with just the tiniest bits of edge wear (I am told this is from the difficulty of collecting these while having to hang upside down). It has the most intense deep blue color I’ve seen before in an Erongo specimen, with a translucent and deeply colored body and a gemmy termination atop. The intense color, and large size, combined with lustre and a contrasting schorl association, all conspire to make this a special pocket considered by those who saw them recently at the 2009 Denver show to be among the best aquamarine finds here in about a decade of quite sporadic aquamarine mining.
7 x 3.9 x 3.4 cm. This specimen features a single, very thick, 7 x 2.2 x 2 cm crystal with minor associated aquamarine and schorl at its base. It has some very minor edge wear, just a few nicks on the sides of the termination, and is otherwise pristine and complete all around. Very dramatic and 3-dimensional.
9.8 x 8.5 x 7.0 cm. The larger crystal measures 6.5 x 3 x 2 cm in size, and the smaller is about 4.5 x 3 x 2 cm. These robust, 3-dimensional crystals stick out dramatically from a matrix of albite, and with schorl in the background for contrast. The matrix is actually a portion of an albite crystal, not just massive rock. It has the most intense deep blue color I have seen before in an Erongo specimen, with a translucent and deeply colored body and a gemmy termination atop. The intense color, and large size, combined with lustre and a contrasting schorl association, all conspire to make this a special pocket considered by those who saw them recently at the 2009 Denver show to be among the best aquamarine finds here in about a decade of quite sporadic aquamarine mining.
8.7 x 8.6 x 5.7 cm. This specimen features a large, robust aquamarine impaling the matrix of schorl and hyalite opal. The aquamarine actually does run all the way through, and sticks out the other side. It is 7 cm long, though only 4-4.5 cm sticks up from the matrix after it passes through. The aquamarine is pristine and undamaged though some of the schorls surrounding it are broken and have edge wear. It has the most intense deep blue color I have seen before in an Erongo specimen, with a translucent and deeply colored body and a gemmy termination atop. The intense color, and large size, combined with lustre and a contrasting schorl association, all conspire to make this a special pocket considered by those who saw them recently at the 2009 Denver show to be among the best aquamarine finds here in about a decade of quite sporadic aquamarine mining.
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Rob Lavinsky, rob@irocks.com
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