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1979 specimens listed
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Herderite - Hydroxylherderite
stock #19.1-341
Conselheiro Pena, Doce Valley
Minas Gerais, Brazil
3.8 x 2.6 x 2.8 CM (miniature)
price: $220


An older specimen originally labelled as "Herderite" but without analysis it is more likely to be Hydroxylherderite. Either way this is a nicely crystalized Herderite series piece with 3 main crystals in a cluster, the largest being 2.6 CM. The crystals have glassy exteriors, are translucent and with strong backlighting show zoning with a darker orange core and lighter yellow exterior. Some minor contacts but no damage or bruises. Some thin cracks are seen in a few crystal faces these appear to be partly recrystallized under d magnification. There are no repairs, the specimen is solid and stable.
Pyrolusite with Manganite -well crystallized
stock #20.1-281
Negaunee, Marquette Co.
Michigan, United States
10.5 x 6.8 x 5.1 CM (cabinet)
price: $680


Pyrolusite is not usually thought of as an esthetic mineral unless it is very well crystalized. This piece has sprays and individual crystals to almost 5 CM long and has some free standing, cleanly terminated prisms. Excellent bright silver metallic luster, this is a very attractive version of a "black ugly" specie. An older classic US locale, this is a substantial piece not often seen in this esthetic quality.
Vesuvianite -
stock #18-AX-22-088
Jeffrey Mine, Asbestos
Quebec, Canada
3 x 1.7 x 1.4 CM (small miniature/ large thumbnail (toenail))
price: $360


A vividly colored, complete, doubly terminated crystal (a "floater") with no matrix. From the Jeffrey Mine which is the only locality that ever produced such colorful Vesuvianite. Highly lustrous in person the crystal has is mostly a mix of green hues from dark to lighter yellowish and has one spot of purple. In fine condition, the faces on this are multi stepped and quite a bit more complex than most crystals from this famed locale. The mine has been closed for years but the heritage of its minerals is world renowned. Choice
Antimony (native element)
stock #18-AX-10-862
Kalliosalo, Nurmo, Seinäjoki
South Ostrobothnia, Finland
3.7 x 3.1 x 1.7 CM (miniature)
price: $220


A lustrous metallic mass of Antimony that shows complex cleavage structures and somewhat crude crystal faces. From Kalliosal in Finland this seems to be a very pure sample and hefty at 48 grams.
Azurite, Malachite etc
stock #20.1-280
Touissit, Touissit-Bou Beker Dist., Jerada Province
Meknes-Tafilalet Region,
6.2 x 4.4 x 2.7 CM (cabinet)
price: $430


Brilliant Azurite crystals up to 2.5 CM on a mixed matrix of Dolomite and Malachite. The Azurites are sharp, flat habit with steep tapering terminations some being very pure, gemmy transparent while others are partly altered to Malachite and are opaque. In fine undamaged condition, from the great finds at Touissit in the 1970's, this displays well and is nicer in person too.
Mercury (native) with Tiemannite and Cinnabar
stock #18-AX 10-406
Sonoma County
California, United States
5.7 x 3.4 x 2,9 CM (cabinet)
price: $330


A rarely seen native element, Mercury sometimes is found in oxidized parts of Cinnabar deposits. This is an incredibly rich piece with dozens of globules partly protruding from the matrix, The silvery globs are in some cases over 2-3 mm and very dense so easily seen on display, not like most pieces which are rather subtle. As is the case with all such specimens it has been sprayed with a non visible fixative to keep the droplets from shedding. There are a few tiny spots of silvery metallic Tiemannite which is a rare Mercury Selenide. The matrix is a shale with a few zones of bright red Cinnabar. Choice and not often available, this is a 1960's vintage specimen, the original label only gives the county as a locale but this looks like a perfect match for specimens from the Socrates Mine.
Gold - very rare wire form
stock #20.FC-091
Pinto River, Novita Municipality
Choco, Colombia
2.3 x .9 x .3 CM (thumbnail)
price: $2250


The rarest form f native Gold is this type of wire habit, these are only known from a handful of localities (I can only think of 4 or 5) and specimens are few and highly prized. This piece looks like a much more common Silver wire except for the bright golden patina. From an small but famed find at Choco in Colombia, this specimen comes from an older French collection. Presenting classic form, this slender wire with a hooking top or termination shows a little ropy texture on one side, the color is quite bright. One specimen from this find was the subject of recent research by Dr John Rakovan trying to determine the method by which these form. Careful study shows the exterior is very pure Gold but deeper inside there is a percentage of Silver. It is likely the Silver mixed with the Gold in rare instances may stimulate this type of form.
Gold - very rare wire form
stock #20-FC-092
Pinto River, Novita Municipality
Choco, Colombia
3 x 1. 2 x .9 CM (thumbnail)
price: $2950


A very fine and elegant Gold specimen. The rarest form for native Gold is the wire habit, these are only known from a handful of localities worldwide (I can only think of 4 or 5). Specimens are very few and highly prized. From some angles this piece looks like a dancer, this piece has two wires or rope-like growths from a flat nugget like base. From an small but famed find at Choco in Colombia decades ago, this specimen is from an old French collection. Classic form with twisting wires tapered to pointed ends. One specimen from this find was the subject of recent research by Dr John Rakovan trying to determine the method by which these rare wires form. So far, study shows the exterior is very pure Gold but deeper inside there is a percentage of Silver. It is likely the Silver mixed with the Gold in rare instances may stimulate this type of form.
1979 specimens listed
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