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rar09-mf01 - Quartz - $ 600 Beihilfe Mine, Halsbrucke, near Freiberg, Saxony, Germany cabinet, 11.5 x 8.5 x 3.6 cm
ex. Dr. Mark Feinglos Collection Slightly amethystine, pale lavender crystals with a bit of barite, this is a nice old classic from a region known more for fluorite and silver than for good quartz specimens! ex. Humboldt Museum collection, with label
RAR09-MF02 - Chalcopyrite - St. Marie Aux Mines, Alsace, France cabinet, 10.6 x 8.2 x 6.3 cm
ex. Dr. Mark Feinglos Collection A surprisingly large and fine chalcopyrite from this ancient mining district, probably dating (i am told) to the late 1700s or very early 1800s! This large display piece is a major French classic, and comes with a historic old label (though we do not know whose it was). The large cluster atop is fully 2 inches across, and is possibly twinned. THis is a major chalcopyrite for any European locality, but we see particularly few old specimens from the St. Marie mines as opposed to German or English material which came out in a time an dplace where more collectors hoarded it away for the future.
rar09-mf03 - Antimony (rare native crystals) - $ 900 SOLD St. Andreasberg, Saxony, Germany miniature, 3.5 x 3.4 x 2.8 cm
ex. Dr. Mark Feinglos Collection Superb, sharp crystals on matrix from the classic silver distrct here, probably dating to the mid 1800s according to Mark. Native antimony in such sharp cubic crystals is extremely uncommon from any locality and aside from a small find in Canada, these are considered historically the best.
rar09-mf04 - Marrite with Galena - $ 400 Lengenbach, Binntal, Switzerland (TYPE LOCALITY) miniature, 4.1 x 2.2 x 1.9 cm
ex. Dr. Mark Feinglos Collection A validated specimen of this ultra-rare silver-lead-arsenic sulfide species from Lengenbach. Mark exchanged it from Dr. Jaroslav Hyrsl who in turn obtained it in trade from the Natural History Museum in Bern, Switzerland, in about 1995. Although microcrystalline, the specimen has some display value - more than most such. The two arrows point to the marrite microxls (one or two at each arrow). The rest is galena. The marrite is dull on the surface, as opposed to the galena, which is bright. Really microscope stuff, but very rare, and a silver mineral, so likely of interest to some folks. (TYPE LOCALITY)
rar09-mf05 - Potarite - $ 1200 SOLD Potaro River, Kangaruma District, Guyana (TYPE LOCALITY) miniature, 4.1 x 2.2 x 1.9 cm ex. Dr. Mark Feinglos
rar09-mf06 - Penfieldite, Boleite, Cotunnite - $ 600 10 km from Sierra Gorda Station, Antofagasta, Chile cabinet, 12.8 x 7.9 x 6.4 cm
ex. Dr. Mark Feinglos Collection A rich and large specimen of these rare species, from new finds in Chile. There are veins scattered all over the specimen, with interesting study material thorughout.
rar09-mf07 - Gold - $ 12500 SOLD Mother Lode District, Tuolumne County, California, USA miniature, 5.3 x 2.7 x 2.4 cm
This gold specimen is absolutely exquisite. I do not use the hyperbole lightly. It has natural pocket crystals, not etched out of surrounding matrix with acid, and so preternaturally bright and with a complex patina (as some such crystals can be, this is at its best). It is a large miniature which for many years was the best piece in the collection of my own mentor, Carlton Davis of Columbus , Ohio. He had bought it from Hugh Ford's famous NYC mineral shop in the 1950s for what at the time must have seemed a rather high price justified by its striking quality. (When Carl sold his collection, this piece went first to Bill Pinch and then to Mark Feinglos). The mine name of origin has been lost but it is from the motherlode area of old mining in California, mostly contained within the current Tuolumne County. The crystals are stunningly bright and sharp, and the specimen is displayable from both sides. It is intricately 3-dimensional in a manner that photos can only begin to convey. Illustrated in a large photo in the GOLD special book/issue of Lapis a few years ago, this is one of the more memorable gold miniatures in my experience and it simply leaves you stunned, to see in person, is all i can say. This specimen was painted in the 1970s by one of Carl's friends, a leading mineral artist of the time, and the painting comes with the piece. ex. Dr. Mark Feinglos Collection and Carlton Davis Collection (my own mentor when i was a kid). Former COVER PIECE, ROcks and Minerals magazine, Jan-Feb 1978.
rar09-mf08 - Pyromorphite - $ 800 SOLD Wheal Alfred, Cornwall, England small cabinet, 8.1 x 4.5 x 4.2 cm
ex. Dr. Mark Feinglos Collection ex. Dr. Gary Hansen collection ex. Carl Bosch Bright yellow-green, lustrous, wonderful pyromorphite from this classic locality! This is a historic specimen of Cornish Pyromorphite ('twas mislabelled as mimetite) sold to the eminent late-1800s collector Carl Bosch by the major dealer of his day, August Krantz (noted on back of his old label). Often these sharply barrel-shaped crystals were labelled, mistakenly but understandably due to the sharp form, as mimetite. This is a beuatiful specimen with sparkling aesthetics, much prettier than what you normally see from this old district in way of pyromorphite. I previously obtained this piece in 2003 with purchase of the Dr. Gary Hansen pyromorphite collection, and sold it to Mark within days for his green pyro suite. So it really has not been available on the market until now, since gary's acquisition of the piece in a trade with the Smithsonian in the 1970s.
rar09-mf09 - Moschellandsbergite - $ 1000 SOLD Carolina Mine, Moschellandsberg, Obermoschel, Rhineland-Palatinate, Germany (TYPE LOCALITY) small cabinet, 6.0 x 4.8 x 4.0 cm
ex. Dr. Mark Feinglos Collection A SHARP 4mm crystal on matrix from this famous find. No doubt other species are on the matrix as well, but this mosch crystal is sharply and nicely displayed. I am told these were found in the 1800s but not identified as this new, rare mercury-silver species until 1938. Usually these go for a lot more money when they turn up, as matrix pieces are exceptionally rare.
rar09-mf10 - Stokesite with Stannomicrolite on Albite - $ 200 Urucum Mine, Galileia, Minas Gerais, Brazil miniature, 4.1 x 3.3 x 3.0 cm
ex. Dr. Mark Feinglos Collection An excellent example of both of these species from an important find brought to market by Carlos Barbosa before he passed away , in the late 1990s. I recall when these came out, it was almost impossible to find even a single specimen with both the Stokesite (the sharp white xls) and the stannomicrolite (brown crystal) on the same specimen - let alone in close proximity. This is an aesthetic representation of both species, in unusual association, on a well trimmed matrix of bladed albite so it displays nicely. Both crystals are of unusually good size for the find, as well.
rar09-mf011 - Microcline set ex. Art Montgomery - $ 500 Pikes Peak Area, Colorado, USA miniature, 4.5 x 3.8 x 2.3 cm
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