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Mineral Specimens with Gold
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7.3 x 5.2 x 2.8 cm. A SUPERB, SUPER-RICH and AESTHETIC Olinghouse gold specimen, which features LARGE for the District gold crystals. The crystals reach 4 mm! This showy piece is RICHLY covered with tiny, scintillating gold wires and a few gold crystals. The gold is etched out of the cream-colored calcite that fills the vugs in the porphyritic host rock. This excellent gold displays beautifully from several views. Ex. Scott Kleine Collection.
2.3 x 2.0 x 1.6 cm. A rich and showy specimen of bright, microcrystalline and hackly gold in hydrothermal quartz from an uncommon Japanese locality - the Nakase Mine on Honshu Island. Highly representative of the species and locality. Older material from the John Ydren Collection. He obtained this from the Burton Jirgl Collection, a dealer who had spent much time in Japan after the 1940s and amassed a sizable and important reference suite, all well documented.
1.2 x 0.6 x 0.6 cm. Bright gold, wrapped around a bit of quartz, from the old sites in Grass Valley in California. I did not weigh it because it is about equally divided between quartz and gold - but from the display side, since the quartz is completely wrapped by the gold, it appears to be almost all gold (a few grams).
1.5 x 1.5 x 1.0 cm. A SUPERB gold thumbnail from the Irv Brown Thumbnail Collection and the Colorado Quartz Mine. Ultra-bright and super-sharp, golden-yellow octahedrons are very pleasing set on carpet of leaf gold. The crowning 6 mm octahedron is a stunner and I like the enechelon character of the smaller octahedra on the "tail.”
4.4 x 1.5 x 0.6 cm. Just a wonderfully showy miniature Eagle’s Nest Mine gold. It has a good balance of gold to matrix, and good aesthetics of the gold as well. Tim Blackwood Collection.
7.1 x 4.2 x 3.5 cm. A leaf of bright native gold, with other spotty areas of gold, on matrix, from Canada. The solid leaf area is not just a thin "gold leaf" coating of gold, but actually has pulled away from the matrix at the edge, so you can see that it is actually thick enough to be quite rigid.
2.9 x 2.0 x 1.0 cm. A sculptural and aesthetic gold toenail from the famous Eagle’s Nest Mine. Bright, golden-yellow, spinel-twinned and microcystalline gold is beautifully twisted above the milky quartz pedestal.
5.0 x 4.8 x 3.3 cm. A RARE and very showy Bisbee specimen of gold on copper crystals from the Cole Shaft. This arborescent cluster of copper crystals has a unique, golden-bronze patina from the gold growing epitaxially on the copper crystals and the aesthetic character of the piece reminds me of bird or dragon, with the low head and beak out front. A really unique and distinctive specimen from the Dave and Emily Stoudt Collection.
4.7 x 4.2 x 3.0 cm. An Olinghouse gold specimen, which features large gold leaves. The leaves reach 6 mm! This piece is covered with scintillating leaves, spinel-twinned gold crystals and gold wires. The gold is etched out of the cream-colored calcite that fills the vugs in the porphyritic host rock. Ex. Scott Kleine Collection.
3.1 x 2 x .1 cm. A gold leaf specimen from this well-known locality. The leaf is composed of flattened octahedrons. From the early to mid 1800s. Ex. Lazard Cahn.
2.5 x 1.8 x 1.8 cm. An aesthetic plume of rich gold leaves rests atop a helmet-like, milky quartz matrix. Ex. Allan Young Thumbnail Collection.
8 x 7 x 5 cm. A very rare locality piece with identifying and unusual matrix, showing rich seams of gold that seem to run throughout. This is likely a very old specimen. It comes from the Richard Hauck gold collection.
4.0 x 1.3 x 0.9 cm. A fine, sculptural and bright, hackly and microcrystalline gold with a bit of quartz from the famous Placerville area of California. This showy, feather-looking specimen has a couple of hoppered octahedrons at one end. These pieces were mined in 1969.
9.3 x 5.2 x 3.0 cm. A superb Olinghouse gold specimen, which features large gold leaves. The leaves reach 5 mm! This piece is richly covered with scintillating leaves, spinel-twinned gold crystals and gold wires. The gold is etched out of the cream-colored calcite, that fills the vugs in the porphyritic host rock. Ex. Scott Kleine Collection.
3.7 x 2.6 x 2.2 cm. A classic Canadian Gold specimen featuring bright metallic leaves sitting on Quartz matrix, which according to the previous owner's labels are associated with Altaite and Calaverite, which is not unlikely as there are several Tellurides that are found at this locality.
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Rob Lavinsky, rob@irocks.com
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share specimen![Gold, Calcite from 813 Pit, Olinghouse District, Washoe Co., Nevada, USA [db_pics/mdpics/MD-168824a.jpg]](db_pics/mdpics/MD-168824a.jpg)
![Gold, Quartz from Nakase mine (Nakaze mine), Yabu-gun, Hyogo Prefecture, Kinki Region, Honshu Island, Japan [db_pics/mdpics/MD-170558a.jpg]](db_pics/mdpics/MD-170558a.jpg)
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![Gold from 813 Pit, Olinghouse District, Washoe Co., Nevada, USA [db_pics/mdpics/MD-173831a.jpg]](db_pics/mdpics/MD-173831a.jpg)
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![Gold from 813 Pit, Olinghouse District, Washoe Co., Nevada, USA [db_pics/mdpics/MD-178907b.jpg]](db_pics/mdpics/MD-178907b.jpg)
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