A well exposed and sizable (3.7 CM) sharp Franklinite octahedron on Calcite. Old specimen, this Franklinite is quite attractive (for a black mineral) with a good bit of luster on most faces. There are some contacts and bruises as seen on mostly back and sides but still much better than average for this brittle mineral. Good specimens of Franklinite have become very scare and are only available from older collections. This one, despite the rough spots is very fine for the specie.
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.
An old Schortmann's specimen circa 1948-50 from the Patterson 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.
A complete 2.9 CM crystal of Rhodonite is perched above a smaller 2.3 CM crystal resting on Calcite matrix. Nicely exposed, the Calcite has not been acid "melted" so this is fully natural. An affordable classic specimen with good color, form and in nice condition, these are getting quite
A well composed, classic Rhodonite specimen from the great Franklin New Jersey that has fine form and color. This cluster has some well terminated crystals up to 3.3 cm long and is above average. Collected over 50 years ago, this has the classic form of blocky, red-pink, somewhat crude crystals with minor calcite associated. At one time these were found in any good USA collection, but they are now quite scarce in any quality.
A cluster of five main Rhodonite crystals up to 3.3 CM in size are arranged in an attractive cluster. This is an American classic that has become quite scarce on the market in recent years. The condition is excellent and like most of these had some acid etching to expose the Rhodonite well. The color is well above average and this piece is very 3 dimensional.
Datolite-color change & Heulandite
Prospect Park Quarry, Patterson, Passaic County
5.0 x 3.1 CM (miniature)
The yellow to green color change occurs between incandescent, flourescent and daylight. Lusterous crystals the largest measuring 2.9 CM with contact on the bottom of the crystal. From a 2009 find.