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Mineral Specimens with Silver
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2.4 x 1.8 x 0.3 cm. A classic and very aesthetic Batopilas specimen of discrete "feathers" of nicely burnished, spinel-twinned silver crystals. An excellent specimen from the very well known early 1980s finds. Ex. Consie Prince Collection.
3.2 x 2.4 x 1.3 cm. An unusual set of Silver wires from an area that we see mostly massive or dendritic Silver specimens from. This ''seahorse'' is 1.5 cm tall, and stands a full centimeter above the matrix. The excellent patina ranges from silvery to copper-color. A very fine wire silver for the locality. Ex. Charlie Key.
A fascinating slab through the center of a Michigan "half-breed" nodule, showing two distinct areas of solid silver surrounded by the copper. This piece really shows off this "half-breed" phenomenon quite well. It is a really showy conversation piece. What a monster this nodule must have been?! 8.5 x 8.1 x 0.4 cm
3.7 x 1.0 x 0.5 cm (largest). An excellent 2-piece set of artistic and aesthetic silver specimens from the Elura Mine of Australia. These tapered, doubly terminated groupings of spinel-twinned silver crystals look like quills or feathers. Unusually, both crystals are folded, giving the appearance of hollows or grooves. These came out in the early 1990s, with very few since. A very fine representation of classic silver crystals.
2.6 x 0.8 x 0.8 cm. Beautiful filigrees of silvery-bright, arborescent, spinel-twinned silver crystals aesthetically extend upward from quartz and matrix on this excellent thumbnail specimen from the El Bonanza Mine at Port Radium, NW Territories, Canada. Ex. Dick Jones Collection.
3.7 x 3.3 x 1.8 cm. An historic wire Silver specimen from the famous mining district of Colquechaca. This area is well known for its Silver minerals, and specimens of Native Silver are highly regarded by collectors. This piece was mined around WWII, and came to Brian Kosnar from the Federico Ahlfeld collection (the father of Bolivian mineralogy). It features a very aesthetic flattened wire of Silver flaring out of massive white Quartz matrix. Ex. Brian Kosnar Collection.
4.8 x 4.5 x 3.3 cm. This is a really heavy chunk of massive barite, through which run veins of silver. The rich silver veins, within the baryte, are unusual. Note the specimen is sawed on all sides. Ex. Harold Urish Collection.
19.2 x 11.7 x 2.6 cm. A sculptural, slabbed and polished, large cabinet specimen of extremely rich, massive silver ore from the Cobalt-Gowganda Region of Ontario. The matrix is greenstone. The back and sides of this impressive ore specimen are very richly coated with red proustite. Weighs 2.4 pounds or just over a kilogram.
7.8 x 5.4 x 2.1 cm. A sculptural and excellent specimen with gorgeous and thick nests of brightly burnished, curled and curved silver wires very aesthetically set on a matrix of solid, crudely crystallized acanthite from a recent find at the Imiter Mine of Morocco. The silver wires in the dispersed nests are a marvel to behold.
7.1 x 6.0 x 3.8 cm. A sculptural, old-time specimen from the famous Copper Country of Michigan. Crudely crystallized to hackly acanthite-coated silver richly protrudes from both sides of the massive, milky quartz matrix. The silver "feathers" at the top of the piece are classic Michigan silver forms. Old and excellent material from the N.A. Wintringham Collection. Weighs 130 grams.
3.8 x 3.5 x 1.7 cm. This piece came from a new find at Porco about 8 months ago (2009). It is a good quality group of crystalline Silver with some pseudo-wire crystals forming a very attractive specimen. This is a good miniature specimen from a classic Bolivian locality. The mine at Porco is the oldest and most significant Silver mine in Bolivia, and obtaining specimens is next to impossible because miners rarely bring out anything for sale, as the mine is a large commercial production, and virtually everything goes into the crusher. Most everything that evades the crusher is usually taken out of Bolivia by a geologist who has an "in" at the mine, or sometimes a group of brave miners risk losing their jobs by sneaking out a handful of specimens to raise a little extra money to feed their families.
5.4 x 4.2 x 2.4 cm. An old-time specimen of hackly native silver on massive calcite from the silver mines at Kongsberg, Norway. The silver has a lustrous, variable patina. Highly representative of the species and renowned locale. Ex. Wes Parker Collection.
5.0 x 3.1 x 1.3 cm. This piece came from a new find at Porco about 8 months ago (2009). It is a good quality group of crystalline Silver with some pseudo-wire crystals forming a very attractive specimen. This is a good miniature specimen from a classic Bolivian locality. The mine at Porco is the oldest and most significant Silver mine in Bolivia, and obtaining specimens is next to impossible because miners rarely bring out anything for sale, as the mine is a large commercial production, and virtually everything goes into the crusher. Most everything that evades the crusher is usually taken out of Bolivia by a geologist who has an "in" at the mine, or sometimes a group of brave miners risk losing their jobs by sneaking out a handful of specimens to raise a little extra money to feed their families.
4.6 x 4.3 x 2.0 cm. A fascinating-looking wire silver with minor acanthite specimen from a new find at the Hongda Mine of China. The thick silver wires on one end look very insect-like with three antennae atop the insect’s head with long neck and a long forearm out front. A tiny bit of acanthite forms the "eye" on one side. The other end is a tail and legs. It looks like a praying mantis. The thick wires on this very aesthetic piece have a very nice patina. This piece bears strong resemblance to classic Kongsberg wire silvers.
4.7 x 3.3 x 3.1 cm. A beautifully aesthetic curved and twisted silver wire projects upward from the sculptural matrix on this fine specimen from the Uchucchacua Mine of Peru. The wire and matrix are very nicely accented by pods of earthy acanthite with matrix. Fairly common around 10 years ago, these are now only available in recycled collections. Ex. Wes Parker Collection.
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Rob Lavinsky, rob@irocks.com
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share specimen![Silver from New Nevada Mine (Nevada Valenciana), Cerro San Antonio, San Miguel, Batopilas, Andres del Rio District, Mun. de Batopilas, Chihuahua, Mexico [db_pics/mdpics/MD-244243a.jpg]](db_pics/mdpics/MD-244243a.jpg)
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![Silver, Acanthite from Uchucchacua Mine, Oyon Province, Lima Department, Peru [db_pics/mdpics/MD-256821a.jpg]](db_pics/mdpics/MD-256821a.jpg)