Emerald with Quartz crystals
Mina Amarillial, Cosquez, Municipio de Muzo
4.2 x 2.2 x 1.9 CM (miniature)
Light to mint green Beryl (Emerald) crystals make up most of this specimen with only a thin shard of matrix showing on one edge. Crystallized Beryla are on all sides, almost a floater. The Quartz prisms are sharp and clear contrasting with the Beryl. Crystallized quartz is rare in Colombian Emerald specimens, much more typical is Calcite or Dolomite. This is from a little known spot in the famed Boyaca region. In Colombia only 2 or 3 mines have ever produced Quartz crystals intergrown with Emerald. There are some chipped or contacted crystals but also many perfect, sharp Hexagons with good transparency and luster.
Volborthite - Vintage, classic
Syssersk, Middle Urals, Permskyaya Oblast
5.8 x 4.9 x 2.3 CM (cabinet)
A very old specimen ex Wards with notes in the hand of George English on label, vintage about 1913-24 from label design. Typical platy crystals and masses on matrix Emerald green to yellow colors. A second old label enclosed is from J. Bohm in Vienna, which contradicts the Wards label locale as being Wreskresenskysch. Based on Mindat details it is possible to be from Sofronovskii the type locality which is in that area. While not a stunning display piece the color and form are good. An old price tag of 3.00 on the piece, a fortune at that time for this was then a very rare specie.
A fine vintage specimen of crystallized Pharmacosiderite, a rather rare specie and a Cornish classic. The label on this specimen dates to pre 1870 when the Mines were absorbed and names changed. The crystals are as always best seen with magnification (or great eyesight!) they are very sharp and distinct, rich green, lustrous, glassy cubic and transparent to translucent. A very elegant small piece with a Frieburg collection label that adds a nice provenance.
A classic old Copper secondaries specimen with several old labels including a Wards label from 1913-22 vintage. Melanochalcite forms a thin zone around Cuprite in Nodules like this near Bisbee. This is an old varietal name for Tenorite which was first described in 1902. Other Copper secondaries are present as are several old handwritten labels in Italian. A colorful antique specimen.
Superb pseudomorph in a complete crystal, double terminated and far sharper than any other I have seen. Classic specimen with a Wards label dating this to over 100 years ago, (after 1913 shortly after George English began to work there). The label bears his handwriting. The Talc is the Steatite variety and more hard than other Talc so the condition of the replacement is nearly perfect. A fine piece for a Pseudomorph suite, and a great old classic on its own.
Elbaite - curved, rehealed crystal
Barra do Salinas Mining District, Coronel Murta
3.8 x 3. 2.8 CM (miniature)
An older, fat and substantial Elbaite crystal with a slight curve where it has rehealed. Multi color, 48 grams and with a white fibrous zone at the bend point. There is scattered bits of Clevelandite on a few faces. Good luster and quite sharp complex termination. Better in person too.
A clean textbook quality example of a gemmy Carthage corner Fluorite. The larger cube has typical frosted, stepped faces and translucent purple surfaces but the corner is glass smooth, perfectly colorless and gem clear, a window into the interior of the crystal. A modern classic habit from the Elmwood mine, this is much more impressive in person and an esthetic mineralogical curiosity.
Adamite- fan form crystals
Mina Ojuela, Mapimi
4.6 x 3.9 x 3 CM (miniature)
Delicate sprays of Adamite in the classic fan form that are nicely perched on mix of Gossan and other Adamites. Attractive small miniature in fine condition, with fans up to 1.8 CM. Good luster and distinctive form this can only be from Mina Ojuela. From 2013 finds, good fans have become hard to find.