Sphalerite -classic USA
Joplin Field, Tri State District, Jasper County
11.3 x 9 x 4.8 CM (cabinet)
Large, esthetic and in perfect condition, this is an exemplary old Tri-state Sphalerite, mined before 1940. The Joplin field was at one time a seemingly endless source of mineral specimens, though really fine, undamaged pieces were very rare. The last of these mines have all been closed for more than 50 years, and the best specimens came out long before then. This is a superb Sphalerite with large distinct crystals that stand out from the matrix. Crystal faces show complex striations, etchings and some twinning, these have a choice silky luster that shows these structures well. This is incredible in person and very much a superb piece from this now legendary area.
Bustamite on Calcite
Broken Hill, Yancowinna County
New South Wales,
3.4 x 2.3 x 2.2 CM (small miniature/ large thumbnail (toenail))
A nice old Broken Hill specimen with a complete Bustamite crystal nicely perched on matrix. Previously labeled as Rhodonite this was a common mistake seen on early labels. This crystal is partly color zoned, has some translucence and has the classic slightly rounded edges. The Bustamite is doubly terminated and the matrix of Calcite is strongly fluorescent.
An elegant specimen with flowerlike crystal sprays on a powder blue matrix. The crystals are in several stages of pseudomorphing from Pyromorphite to Plumbogummite. These are in excellent condition, complete and undamaged which is very rare in these specimens. Many of the free standing crystals are light blue on one side and yellow-green on the opposite side. These amazing Plumbogumites from China were big mineral news when these were first found, they have been recognized as the worlds best.
A very old or "vintage" specimen, previous label notes it to have been collected 1830-40 era. The labels call the associated crystals Mimetite although it looks to me like the larger greener ones are Pyromorphite with some yellow Mimetites as a second generation. This specimen is pictured on Mindat and it is labeled Pyromorphite there. Ex Ben Shumer collection, this is a small but pretty and colorful miniature. Under good magnification it is quite incredible, delicate and the blue Plumbo balls sparkle. Quite three dimensional, a nice classic specimen from this famed locale. Before the great Chinese Plumbogummites were found recently. English pieces (from Roughton Gill and Dry Gill) were the worlds best, prized in top collections all over the world. Despite the beauty of new Chinese pieces these old English specimens are still very special and quite different too. This mine was last worked in 1869, and was one of the worlds most important mineral localities.
A well proportioned Scepter of Quartz that has a milky phantom in the head sits on a mix of smaller crystals. Overall very esthetic and looks great from all sides, this is in outstanding condition. Vintage 1992-3 from the Verkhnil (Verhniy) Mine at Dalngorsk, this miniature has nice display impact. Ex William Hladysz collection.
Olesna, Horovice, Beroun District
Central Bohemia Region,
7.1 x 6 x 4.4 CM (cabinet)
A black ugly, nearly pure, globular Lithiophorite that is a very good example of the specie and the locality. From an old Czech collection, this Manganese Oxide mineral (with Aluminum and Lithium) is never a "pretty" mineral, but it is uncommon and this a rich specimen.
A unique and rather bizarre specimen of Sixling twinned Rutile (epitaxial on Hematite" that is coated on almost every surface with a secondary growth of Botryoidal Romanechite. The form is very well defined and sharp, the twins are repeated and stacked in a line showing repeat orientation. A wonderful textbook perfect twin specimen that has the added oddity of being coated with what looks to the naked eye like a soot but with magnification is all botryoidal encrustations. In great shape, on the backside a small area of the Rutile is exposed and the hairs are clearly seen in bright golden color. We have visited Bahia ,and handled a lot of Rutile from there and elsewhere, but this is the only specimen I have ever seen like this. It was suggested that this be cleaned and made to look bright and fresh as is typical of Rutile. I prefer it like this as a very different if dark specimen that is unlike any other.
Dolomite with Quartz
Traversella, Chiusella Valley, Canavese DistrictMetropolitan city of Tur
5.3 x 3.5 x 2.4 CM (cabinet)
A cute and unusual Dolomite that is in translucent blocky rhombs nestled with clear Quartz crystals. A vintage specimen with old labels ex Pallanza collection. Very good luster and condition, Dolomites from this area of the Piedmont are known in many habits and styles, this one look much more like a French Alpine specimen but is really from the Piedmont.