A pair of well formed, isolated Prehnite crystals are nicely perched on a matrix of slender Diopside crystals. Excellent contrast and an unusual combination that is very esthetic. The display face of fully crystalized and fully damage free, which is remarkable with delicate Diopsides. Jeffrey mine has over the years produced the best Prehnite crystals in the world in many habits and colors. This miniature is remarkable for the perfection of form, a super Prehnite specimen from anyplace and quite fine even among good Jeffrey pieces.
Extraordinary mint-green acicular needle crystals form a sparkling mass on green and colorless Grossular crystals. This is the only example we have seen of green Pectolite from Jeffrey, or from anyplace for that matter. A few tiny Diopsides are also seen with magnification. Very bright and attractive. Some of he Pectolite needles are the typical white color close to the terminations but green near the base. Displays well from several angles, really different and special from the great Jeffrey mine.
Choice Val Malenco Garnet specimen with several waxy green rounded Demantoid crystals perched on typical Amphibole matrix. The elongation of the 2.1 CM main crystal is impressive, and shows complex rounded faces. Classic specimen, these have always been prized and this is an older piece, sawn on the back as is common to enable collecting intact. The matrix has some cracks that may be old repairs or typical weakness in the fibrous structure of the matrix. Well above average quality best appreciated in person
Runderoth, Grunblieberg Mine, Gummersbach, Bergisches Land
8.9 x 6.1 x 4 CM (cabinet)
A cabinet sized Pyromorphite densely covered with dark green crystals in good condition. An older specimen Ex. John Marshall collection of Pyromorphites, obtained by him in 1994 in Munich. The locality given of Runderoth seems to be a specific point in or near the old Grunblieberg (Green lead Mountain) mining area. Nearly all of the matrix shows at least a few Pyros, but the main display face has a 5 CM diameter dense patch of well formed crystals. John was a fanatic collector of Pyros and was on a mission to obtain the best he could find from every locality in the world. He was not able to upgrade from this one during the next 20 years of collecting.
Sphalerite- Gem crystal
stock #18.AX- 161
ZCA Mine number 4, Balmat, Balmat-Edwards District, St. Lawrence, Co.
1.2 x .8 x .4 CM (thumbnail)
A small, gem clear single crystal of amber colored Sphalerite. Complete and undamaged from the remarkable finds decades ago at the ZCA (Zinc Corp. of America) mine in Balmat, NY. A "textbook quality" crystal, despite the small size this has good eye-catching luster and color.
Beryl var. Emerald wih Quartz
Mina Amarillial, Cosquez, Municipio de Muzo
5.4 x 4.8 x 2.6 CM (cabinet)
A two-sided specimen holding dozens of light to mid green Emerald crystals that are intermixed with Quartz crystals. Very unusual for a Colombian Emerald specimen, the usual association in Calcite. Prior to our finding this material the only Quartz matrix I have seen or know of for Emeralds is at Penas Blancas and it is very rare there. This little known cut near Coscuez has now produced a few of this rae combo. A choice and rare piece with many small, very clear Emeralds covering both sides of the matrix. With magnification the quality really stands out.
Analcime with Aegirine etc.
Mont Saint-Hilaire, Monteregie
4.8 x 4.8 x 3.9 CM (miniature)
A complete, glassy "golfball" Analcime crystal that is studded with several Aegirine crystals and related minerals. Classic specimen and a fine display piece, this is complete on all sides and undamaged. The faces are sharp and translucent with bright luster. Mont St. Hillaire was for many years one of the few localities that was accessible to collectors and exposed many rarities and best of species. Those days are gone but specimens of this sort are the legacy of a great locale.
Topaz -gem clear crystal
Sakangyi-Kyauk-Pyat-That, Mogok, Pyin-Oo-Lwin,
3 x 2.2 x 1.8 CM (small miniature/ large thumbnail (toenail))
A single glass clear crystal that is in person colorless and bright. A few tiny lines and veils are seen inside but nearly all is facet grade. A choice Topaz from the legendary Mogok gem tract. No damage, a few faces have a light frosting but most are smooth, sharp and clear.