From the classic Tri-state locale of Pitcher, this is an esthetic, textbook perfect specimen with incredible form. The elongated cube main crystal has a fine gunmetal luster and color, but it is wonderfully decorated with oriented octahedral Galenas that are perfectly aligned across the faces. The geometry and architecture of this specimen is incredible, it is in excellent condition. This comes from early mining prior to the 1930's, and is far better in person.
Conichalcite with Hemimorphite
Bristol Silver Mines, Lincoln County
11 x 8.3 x 5 CM (cabinet)
pre Tucson 2015 update
A very unusual and significant US specimen, a sizable cabinet piece with excellent color and form from this little known locale. Ex John Marshall collection, John's collection catalog notes that he has only ever seen 3 specimens from this location, this being the best. The deep green Conichalcite is composed of small balls with bright "wet" luster that are offset on the lighter colored Hemimorphite. With magnification it seems there may also be some Aurichalcite on this specimen but that is not confirmed. A fine display piece that is as good as any US Conichalcite from anyplace. Better in person.
Distinctive hexagonal sixling aragonite form are fully pseudomorphed by quartz in this esthetic arrangement. A few small broken crystals serve to show the internal agate form that has replaced the Aragonite. A classic and complete true Pseudomorph, this material is no longer available, it has been found sporadically for several decades. This has the most sharp detail and best crystal arrangement that I have seen.
Glass clear and textbook sharp this is a small but super clean specimen from the alabaster quarries of Fuentes de Ebra. These are very fragile and so there are few that survive in such perfect condition. Since these are so distinctive they are found in many top collection but rarely are for sale in this quality. Unlike many this is not a twined crystal but a single prism that is optically clear.
Unusual habit Aquamarine ex. John Marshall Collection. The main crystal is 3.4 CM across the termination face, with an etched cavity in the center that bells out inside the crystal. The there is also a 2.2 CM Hydroxy-herderite crystal on the back side as a bonus. Good condition and a very nice "oddity" from this prolific region.
A very lustrous, glassy tourmaline that has zoning of dark-mid green to a nearly black green. It also sports a fibrous "cats eye" type structure best seen near the base. An older Schortmann's Minerals specimen (with label) that dates this back to the 1940's. Classic habit and form from Barra Do Salinas, few of these survived cutting as the cats eyes they show were quite desirable. Very minor chipping is noted with magnification but the overall quality is fine. The complex multiple terminations and deep striations give this a eyecatching quality.
An attractive Sphalerite crystal cluster that has flower-like form is perched on a contrasting matrix. The color looks black at first glance but with strong lighting it is a translucent dark red-brown (rubyjack) color. The luster is extra glassy bright and the quality is fine. The front of the specimen is in excellent shape damage wise, the back and one edge is contacted which is not seen from the display side.
Sphalerite specimens from Elmwood are common, but esthetic specimens of this caliber are quite rare to find. A lot of display impact for the size.
An olive green crystal plate from this venerable old locale that is densely covered with free standing crystals. The condition is overall excellent but with magnification some very small damage can be found, mostly at the edges where this was removed. The Pyromorphites themselves show several habits including hoppered and tapered terminations. This specimen is a little lighter in hue than is most Pheonixville specimens, but it has the classic luster that is distinctive.