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10 specimens listed
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SOLD Datolite with Pectolite - historic with G. Kunz signature
stock #SOLD AX-27-224
Bergen Tunnel (Erie RR. "old tunnel" Jersey City, Hudson County
New Jersey, United States
8.8 x 4.9 x 2.9 CM (cabinet)
price: $0
Late Summer 2021

A fine Datolite specimen from a long gone Historic locality, the Bergen Hill tunnel. One of the old labels with this is handwritten and SIGNED by George Kunz, the famed mineralogist Kunz sold many minerals and built three major collections during his career but signed Kunz labels are very rare. This specimen is from the "old tunnel" in Bergen Hill, built in 1857-60. This would have been collected during that construction. A later tunnel in 1881 was dug nearby, both were important localities during the construction but not since. Specimens are now only seen in very old collections, yet this was a significant early US source of Traprock minerals. The Datolites are tiny, very lustrous sparkling crystals some of which seem to have coated earlier Pectolites. There are still numerous Pectolite crystals present especially on the backside. The Datolite seems to be formed in two different generations, most of the crystals are colorless but there is a very faint hint of color in person. Documented specimens from the "Old Tunnel" are very rare on the market.

Willemite var. Troostite (Historic specimen)
stock #AX-35-463
Franklin/ Sterling Hill
New Jersey, United States
4.7 x 3.2 x 2.7 CM (miniature)
price: $480
new year 2021

Two crystals of Mn rich Willemite (Troostite) in Calcite collected by Wallace Gould Levison in 1889. While the Troostite variety of Willemite is only known from the Franklin and Sterling mines, this specimen was actually collected in Jersey City, New Jersey at the Zinc Works there. It was found in a load of Zinc ore transported from Franklin to the smelter there, so this is unique, being probably the only Troostite that was not collected from Franklin. The Willemite crystals are a brick red color, well-formed though with typical slightly crude edges up to 3.1 CM. We will include a photocopy of the handwritten ledger from the Levison collection. Levison was a prolific 19th century collector located in Brooklyn who became very interested in the fluorescent minerals of Franklin. He invented and patented a specimen viewing box for shortwave UV light in 1909. A nice specimen with a great provenance.

SOLD Tephorite - crystalized with Willemite etc.
stock #SOLD 20.1-640
Franklin Mine, Franklin Mining District, Sussex County
New Jersey, United States
3.4 x 2.6 x 1.7 CM (small miniature/ large thumbnail (toenail))
price: $0
new year 2021

A Franklin, New Jersey classic, a mass of Tephorite crystals with green Willemite crystals and some small areas of what seems to be Hodgkinsonite and Friedelite. This is an old specimen that was for many years in several European collections, those labels are included. Tephroite in massive form is not very rare at Franklin, but the tiny, sharp and gemmy crystals are quite rare and not often available.

Quartz after Glauberite (epimorphs)
stock #20.1-781
Upper Montclair, Essex County
New Jersey, United States
3.1 x 2 x 1.3 CM (thumbnail)
price: $55
new year 2021

A nice branching cluster of prismatic but hollow arms that show the original form of the Glauberite very well. A choice thumbnail from a classic USA locality that is in excellent condition. While good cabinet specimens were known from both the Houdaille and McDowells Quarries here, thumbnails seem to be very rare. This has a good reddish color as well, looks fine from all sides. These are often labeled as pseudomorphs but should more correctly be called Epimorphs as the orginial Glauberite is not replaced but is completely gone.

Datolite (color change) and Heulandite
stock #8.1-208
Prospect Park Quarry, Prospect Park, Passaic County
New Jersey, United States
5.1 x 3.2 x 2.8 CM (small cabinet/ large miniature)
price: $250
Spring 2020

Datolite with a strong color change from artificial to daylight, the color goes from a dark olive-green to a yellow-grey. From a remarkable pocket at the classic Prospect Park Quarry locality in 2008, there were not many pieces found. This has contrasting Huelandites with a warm brown color and shows the uncommon color change phenomenon very well. The Datolite is transparent with many faces being very glassy. There is contacting and bruising that can be hidden fairly well by display angle, so not for perfectionists. Overall the condition is equal to the best I have seen from this find, and a cute Northeastern USA oddity.

Andradite (var. polyadelphite)
stock #19.1-516
Franklin/ Sterling Hill
New Jersey, United States
4.8 x 4.1 x 3.8 CM (miniature)
price: $290
Spring 2020

Sharp Franklin New Jersey Garnets with the Orange-Brown color that was once called Polyadelphite. This is a Mg rich type of Andradite, but it is not recognized as a separate specie and the name is not used as much now. This is an old specimen, there are several collection numbers and one handwritten label attached. The main Garnet is 2.3 cm across, the form is quite good and relatively complete for one of these. Classic Franklin material this looks like others I have seen from the Buckwheat but there is no further information. A choice Franklin crystal.

Willemite -red to pink crystal in Calcite
stock #AX-12-581
Franklin Mine, Franklin Mining District, Sussex County
New Jersey, United States
6.2 x 4.2 x 3.1 CM (cabinet)
price: $285
Spring 2017

A nice classic Franklin, New Jersey Willemite crystal well exposed on Calcite. Vivid fluorescence, sharp prism faces and not acid etched out of the matrix (which was usually done but looks melted and is less desirable). The crystal is typically crude and slightly rounded on some edges with natural cracks but no repairs.

Stilbite - radial type-classic locale
stock #15.1-523
New Jersey, United States
7.2 5.6 x 2.5 CM (cabinet)
price: $140
May 2015

An old Schortmann's specimen circa 1948-50 from the Paterson New Jersey area. The radial ball of Stilbite is 3.2 cm across and nicely exposed. This sort of esthetic is not very common from this classic locale best known for Prehnites. In fine condition.