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Mineral Specimens with Silver
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2.1 x 1.9 x 0.7 cm. A GORGEOUS, arborescent, two-toned silver crystal thumbnail cluster from a most exotic location - Waihi, North Island, New Zealand. The lustrous, dark coating appears to be either bornite or acanthite. Very high lustre on the uncoated silver. Ex. George Elling Collection.
5.7 x 4.3 x 1.7 cm. A stunning filigree of beautifully burnished, spinel-twinned, herringbone-patterned silver crystals on matrix from the famous Bonanza Mine of NW Territories, Canada. The silver is actually a thick and sturdy mat on the matrix. The silver and matrix are very nicely shaped.
5.7 x 5.3 x 2.9 cm. A super-rich specimen of wire silver on acanthite, from the recent finds in Morocco (this piece was mined in early 2006). Acanthite is of course silver sulfide, so what you have here is a LOT of silver. But most important are these thick mats of glittering silver wires, richly piled up on the underlying acanthite (which provided the silver that supplied the growth of the wires). This find caused quite a stir, as any new find of crystallized precious metal does.
2.9 x 1.7 x 1.7 cm. SHARP, CUBIC silver crystals to 1.0 cm are found on three sides of this historic, old-timer from Kongsberg. Cubic silver crystals are the rarest and most desirable silver crystal forms from any worldwide locality and this specimen has large, sharp crystals of good quality and patina. Ex. Ed Swoboda’s Collection.
4.0 x 2.4 x 2.2 cm. A dramatic and aesthetic silver on calcite specimen from the famed New Nevada Mine at Batopilas, Mexico. Two, side-by-side, elongated, spinel-twinned silver "feathers" are beautifully upright on the front of the piece, The longest twin is 2.2 cm. Another, very slender twin, 1.4 cm, with a branch is very well-placed at the end of the calcite matrix. Many smaller "feathers" add to the overall beauty of this piece. The silvers have a very nice patina.
4.0 x 1.6 x 1.4 cm. A sculptural, thick and bright, twisted silver wire from the famed Uchucchacua Mine of Peru. The wire looks serpent-like. Very few new silvers have come from this mine in the last 3-5 years, as the primary silver wire producing zone has been mined out.
6.2 x 5.5 x 5.3 cm. A dramatic specimen of a 2.2 cm, aesthetic cluster of sharp, lustrous silver crystals beautifully perched atop milky quartz matrix from last year’s Chinese fines in Shanxi Province. Very few NATIVE SILVERS of this quality were available, as most of the specimens were acanthite.
2.1 x 1.4 x 0.4 cm. An aesthetic and old-time thumbnail of sharp, leaf-like, arborescent silver crystals from the South Kearsarge Mine of Michigan. A classic silver from the Seaman Museum Collections, and just a stellar representation of this habit of crystallization.
7.0 x 5.5 x 3.1 cm. A fine, sculptural specimen with beautiful and thick nests of brightly burnished, curled and curved silver wires set on a knobby matrix of solid, crudely crystallized acanthite from the Imiter Mine of Morocco.
1.8 x 0.7 x 0.6 cm. Electrum is a rare natural amalgam of gold and silver (sometimes with trace amounts of copper and other minerals as well). This smooth, water-worn nugget is from Nevada. It weighs about 7.5 cts. Ex. Carl Davis Coll.
5.4 x 3.1 x 0.7 cm. This is a rich, 1.3-ounce specimen of silver in a natural amalgam with the nickel-arsenide "niccolite", from the Capitol-Siscoe Mine in Canada. It has been sliced and polished on one side. You can see that except for a bit of quartz, this is just about solid silver and nickeline.
4.8 x 2.8 x 2.6 cm. An old-time, unusual and showy pseudomorph from the famed Felsobanya (Baia Sprie) mines of Romania of metallic-bright pyrite after silver crystals richly and 3-dimensionally covering quartz matrix. This is a rare pseudo from this famous and soon to close locality. Accompanied by an old Schortmann’s label. Ex. George Elling Collection.
4.0 x 2.0 x 1.8 cm. An AESTHETIC, old-time silver specimen from Beaverdell, British Columbia, Canada. A very snake-like (cobra with head), 1.9 cm, silver wire projects upward, vertically, from matrix. The matrix consists of THICK, curled silver ropes and quartz. The silver wire and ropes have different patinas, which add to the character of this very fine specimen. It looks like the cobra silver wire is guarding its nest.
16.9 x 5.6 x 2.9 cm. This is a very large and relatively thick sheet of natural silver, sturdy and not wimpy and thin, that is still attached to a chunk of bornite ore. Both the ore and the silver have a beautiful, colorful iridescence (did not show up well in the photo) from the bornite. This was likely a thin vein of silver filling a crack in the matrix ore that was then exposed by the miners, who retained some of the ore with the silver sheet. From the classic Mexican mining locality of Zacatecas.
3.3 x 1.0 x 0.7 cm. A beautiful curved and curled silver wire with a nice patina and very aesthetically accented with a curled nest of small wires from recent finds in China. Not too many had this quality and form.
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Rob Lavinsky, rob@irocks.com
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