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81 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: $660
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.

Fluorite with Siderite - vintage German specimen
stock #21.1-200
Rottleberode, Sudharz, Mansfeld-Sudharz
Saxony- Anhalt, Germany
6.2 x 5 x 3.8 CM (cabinet)
price: $300
Late Summer 2021

Blue-green Fluorite crystals reaching 3.3 CM with several distinct Siderite crystals on and between the Fluorites. A nice old German piece with labels from A. Kranz and another earlier collection, this is in very good condition overall. This locality was worked for a very long time and finally closed about thirty years ago, though we believe this specimen is at least 100 years old. The Siderites are in well-formed lath type crystals and show curved faces much like Dolomites. A classic piece from the southern Harz Mountains, we rarely see specimens from this locale here in the USA, this one is well better than average.

Chrysocolla fingers with Quartz coatings
stock #13.1-176
Ray Mine, Ray District, Dripping Springs Mountain, Pinal county
Arizona, United States
3.6 x 2.1 x 1.2 CM (miniature)
price: $550
Late Summer 2021

A cluster of Chrysocolla "fingers" with perfect, undamaged tips from the Ray Mine,(Arizona, USA). Sometimes called stalactites, that is not technically correct as there is no central canal or hole in the middle. This has excellent turquoise color and a pearly luster. Close exam shows the thin layer of Quartz that is like a skin over the Chrysocolla. It is very hard to find such perfect examples with all the fingers intact. A colorful and classic USA copper specie.

Spharosiderite (Siderite)
stock #17.1-267
Estacada Pyrite locality, Clackamas County
Oregon, United States
7.4 x 5.3 x 4.1 CM (cabinet)
price: $280
Late Summer 2021

Sphaerosiderite is a fairly rare form of Siderite usually found in Basaltic flows, and can form in a diverse array of habits. On this piece the red color balls are scattered in an open cavity. A very esthetic specimen in fine condition having great contrast with the cavity lining. Under strong lighting the orange-red Siderites are rather sparkling. These are a lower temperature type of structure that are essentially a microcrystalline rosette form that has a very distinctive habit. Worldwide these have been found as very smooth spheres often with a metallic or smooth luster. The finds in Clackamas County are more often this type of red balls with a textured surface. This is a well-defined and attractive example from this region. Ex Hitchings collection.

Pyromorphite - USA classic
stock #0847-JM-2124
Little Giant Mine, Mullan, Coeur d' Arlene District, Shoshone County
Idaho, United States
7.6 x 5.6 x 3.1 CM (cabinet)
price: $690
Late Summer 2021

Well-crystallized Pyromorphite crystals cover a matrix plate from the Little Giant Mine (Idaho, USA). This region has a long mining history and is well-known as the home of the Bunker Hill Mine, one of the world's great Pyro locales. Less famed but still quite important is the Little Giant, and this is an excellent example for this locality. A choice addition to a serious suite of Pyromorphite the quality is much better than just a locality specimen. Ex John Marshall Collection; John was a passionate collector of Pyros and his taste was excellent. John purchased this specimen in 1974 from the Paul Zimmerman collection. His collection card states "One of the best pieces I have ever seen from the locality". It is outstanding for this mine.

Bournonite with Sphalerite - French, unusual locale
stock #0934-JM-1400
Saint-Laurent-le-Minier, Gard
Occitanie, France
8.7 x 5.3 x 4.7 CM (cabinet)
price: $1200
Late Summer 2021

A cabinet sized cluster of intergrown Bournonite crystals with a scattering of sharp, lustrous Sphalerites. This is not from the famed region of Les Malines in Gard, well-known as a major classic locality for Bournonites, this specimen is from an unusual locality at Saint-Laurent-le-Minier which is also in Gard. Mindat list this as a source of Bournonite but has no examples pictured. These crystals are up to 2.6 CM and are covering almost the entire specimen. These have a dark patina, some edges show classic cogs-wheel form but most are prismatic and well-defined. The Sphalerites are a mixture of lustrous black and red-orange crystals some of which are transparent. The minerals coat the matrix everywhere except for a small spot on the underside. A choice French Bounonite with a little different look than the usual more metallic specimens. Ex John Marshall collection obtained by him in 1969.

Wulfenite with Calcite etc.
stock #21.1-332
Mina Ojuela, Mapimi
Durango, Mexico
3.6 x 3.3 x 2.6 CM (small miniature/ large thumbnail (toenail))
price: $90
Late Summer 2021

Older blocky style Wulfenite crystals with small Calcites on gossan matrix. The majority of the large crystals are complete and slightly distorted with a burnt orange color and good luster. In good condition overall, some minor damage exists but is not very evident. Another modern classic from Ojuela.

Columbite
stock #8.AE-699
Sao Jose do Safira
Minas Gerais, Brazil
4.1 x 3.1 x 1.5 CM (miniature)
price: $180
Late Summer 2021

A single, blocky but somewhat tabular Colombite crystal. Distinct although rather crude, the crystal is fully terminated and moderately lustrous. An older piece from Sao Jose do Safira (Brazil) this is a very good miniature of this commercially important pegmatite mineral that is not often considered "pretty".