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Mineral Specimens with Alunite
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An exceptional example of rarely-crystallized alunite, from this important locality for the species. Seldom , however, are they seen on the market today. Alunite from this locality is generally regarded as best of species. Very little material ever made it to outside markets though. I have seen nothing recently, except for a small lot I obtained in around 2000-2001 from which this specimen originally came.
6.5 x 4.7 x 2.0 cm. A very fine and showy plate covered with tan, alunite blades to 3.0 cm from an uncommon worldwide locality in Taiwan. Alunite is an uncommon sulfate and this is a highly representative specimen for the species and locality. Ex. George Elling Collection.
5.8 x 4.7 x 1.5 cm. A beautiful piece featuring a very large (for the species) 3mm crystal right in the middle of nicely crystallized alunite matrix. A sprinkling of smaller crystals provides some color above to make it a showy specimen overall. There are several other 1-2 mm crystals.
5.2 x 4.3 x 3.1 cm. An excellent reference specimen with beautiful microcrystals on alunite.
6.4 x 5.6 x 3.5 cm. A rich specimen just loaded with clusters of microcrystals of this rare species, to 5 mm across. Individual crystals are to 1mm, but there are a lot of them.
10 x 8.7 x 4.2 cm. A superb specimen with beautiful, elongate crystals to 3 mm on crystallized alunite, protected by the 3-dimensional vuggy formations of the matrix. This is a very rich and significant example.
5.1 x 3.7 x 1.1 cm. This specimen features rich sprays of rodalquilarite crystals, a rare tellurite species, in an alunite rind, with one absolutely giant crystal for the species at nearly 5 mm in size. The crystals are gemmy, sharp, and rich olive-green in color.
3.8 x 3.7 x 2.2 cm. A rich reference specimen with several pockets in an alunite rind on rock matrix each filled in by Rodalquilarite almost entirely. Crystals to several mm are present, though grown together and not freestanding.
3.4 x 2 x 2 cm. A rich reference specimen with a single large pocket in alunite rind on rock matrix, filled in entirely by Rodalquilarite. Crystals to several mm are present, though grown together and not freestanding. Still, it’s a very intense color and concentration of this rare tellurite species.
3.0 x 2.5 x 1.6 cm. A beautiful large thumbnail of intense olive-green Rodalquilarite perched on crystallized alunite. The spray atop is 4mm. What is more remarkable, though, is the isolated, elongate, translucent 4.5mm crystal sitting perched on the alunite. Tim Blackwood Collection.
3.9 x 2.7 x 2.5 cm. A very rich specimen with closely-grown, lathe-like crystals of this rare tellurite to 5mm in size, filling a vein in alunite, upon limestone matrix. A very rich specimen for the species.
6.4 x 5.4 x 4.9 cm. A rich and fine 3-dimensional specimen of several sprays of grass-green lathes, to 4 mm, of the very rare tellurite, rodalquilarite, in several vugs lined with the nicely contrasting yellow sulfate, alunite, from the Wendy Open Pit of Chile. A highly representative combination piece with this rare species.
4.8 x 2 x 1.5 cm. A reference specimen for the species, with minute crystals.
6.4 x 4.8 x 4.1 cm. This superb specimen features a 3-dimensional spray of freestanding crystals to 3 mm in size. The crystals are gemmy, sharp, and exceptionally formed. The cluster is really striking and of high quality for the species, with freestanding crystals.
This is the best specimen of the lot. It features rich sprays of crystals in an alunite rind, with one absolutely giant xl for the species at nearly 5 mm in size. The crystals are gemmy, sharp, and ELECTRIC GREEN in color. The piece overall is REALLY striking and of high display quality for the species. I have seen handfuls of these over the years, but never for sale a specimen of this rare tellurite species worth noting this hyperbolically. BETTER IN PERSON!
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Rob Lavinsky, rob@irocks.com
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