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Mineral Specimens with Mimetite
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8.6 x 6.7 x 3.8 cm. Covering a matrix of heavy, reddish-brown cuprite are rosettes of yellow-green mimetite crystals, to 2.0 cm across. In fact the shape and color of the mimetite is reminiscent of many ground covers used in Texas gardens. The style is, for Tsumeb, quite rare actually and dates to the oldest workings of the upper oxidation zone. Ex. Charlie Key Collection.
3.9 x 3.5 x 2.5 cm. Massive black ore is the matrix for a few straw-colored, doubly terminated, lustrous and translucent, mimetite crystals, to 1.5 cm across. Ex. Charlie Key Collection.
3.7 x 3.6 x 2.7 cm. The large cluster of diverging crystals measures 2.75 cm. On the left side of the specimen, a few crystals have formed a “Bow Tie". Ex. Charlie Key Collection.
15.4 x 6.9 x 6.2 cm. Mimetite crystals from Tsumeb are quite rare. Here is the side of a pocket, with a couple dozen translucent yellow crystals of mimetite including two of some size, the larger measuring a full centimeter.
7.2 x 5.0 x 3.9 cm. A couple of interconnected pockets containing VERY lustrous and relatively large crystals of bright yellow-orange wulfenite, from the San Franciso Mine. The crystals measure to 1.3 cm.
5.7 x 4.9 x 1.9 cm. A showy and excellent Tsumeb plate of rosettes of sparkly, pastel-yellow mimetite crystals richly scattered on matrix and beautifully complimented by contrasting, bladed, green malachite. A nicely visual piece from this historic and now-closed mine.
5.5 x 3.5 x 2.5 cm. Lustrous, green, "campylite" or barrel-shaped mimetite crystals. The crystals reach 1.2 cm. This richness of green is uncommon from the Dry Gill Mine. Ex. John Ydren Collection.
5.0 x 2.8 x 3.0 cm. A SUPERB, two-sided willemite specimen from the famous and now-closed Tsumeb Mine. Powder-blue Tsumeb willemite is RARE, but this beautiful piece has vuggy matrix on both sides lined with lustrous, powder-blue willemite botryoids! A dusting of malachite really adds pizzazz on one side. There is even an 8 mm, lustrous, yellow mimetite hidden in the willemite botryoids! EXCELLENT material from the Rob Smith Collection, a noted Tsumeb collector.
11.7 x 4.2 x 2.5 cm. A rich plate of superb hexagonal Mimetites that range up to .5 cm across. Most of the crystals have lustrous gemmy cores sandwiched between frosty terminations of yellow micro crystals. Superb and aesthetic example from famous finds now over 5 years ago, never repeated since despite a lot of looking for more! These crystals have an intense yellow color to them, and killer lustre. Ex. Charlie Key.
3.4 x 2.9 x 1.9 cm. No, this mimetite specimen is NOT from San Pedro Corralitos. Even those are hard to get now, but this is a rare miniature of similar form and color from a completely different locality in Zacatecas. These are translucent botryoids with a silky luster, with pretty 3-dimensionality.
3.5 x 3.4 x 2.3 cm. Tsumeb Gem Pocket mimetite, from the one-time 1971 find, is considered the world’s finest mimetite. This showy and excellent Gem Pocket specimen is dominated by a 1.1 cm, gemmy crystal jauntily perched above a vug with smaller mimetites lying in a field of earthy, yellow-green beaverite. Beaverite is a rare sulfate and is very rare from Tsumeb. The large mimetite is doubly terminated, with the upper termination having embedded beaverite - contacted, but not damaged. This is a highly representative combination specimen from this famous find. Ex. Rob Smith Collection.
6.3 x 4.3 x 4.3 cm. A STRIKING and DRAMATIC Mexican mimetite specimen from the MUCH LESS well-known La Esperanza Mine of Durango. Translucent, lime-green mimetite botryoids and arborescent crystal clusters COVER the gossan matrix. The knob of mimetite is STRIKING. Glassy, flattened, colorless calcite rhombs are a beautiful accent to this OLD-TIME, RARE and AESTHETIC specimen from the Dave and Emily Stoudt Collection. Collected in 1955, according to the old label from a man named Harshbarger.
5.5 x 3.5 x 3.3 cm. An UNCOMMON, showy and excellent mimetite varietal from Tsumeb. Lustrous, frosted, straw-yellow mimetite crystals to 2.1 cm are jauntily arranged upright on a matrix crust of solid mimetite. The mimetites are accented with unusual and uncommon drusy quartz and are very nicely complimented by a scattering of cerussite crystals, which are also uncommon with mimetite. Ex. Rob Smith Collection.
7.0 x 6.0 x 5.5 cm. Lustrous, PYRAMIDAL, butterscotch-colored wulfenite crystals. The matrix of solid, highly vuggy, botryoidal, forest-green mimetite is an outstanding compliment. The exact mine location is Level 6, San Juan Poniente vein.
4 x 2.1 x 1.3 cm. Gemmy crystals of mimetite to just over one centimeter, in a shallow pocket lined with rhombs of pink smithsonite! Ex. Ulrich Bahmann Collection.
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Rob Lavinsky, rob@irocks.com
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share specimen![Mimetite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-163004a.jpg]](db_pics/mdpics/MD-163004a.jpg)
![Mimetite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-163068a.jpg]](db_pics/mdpics/MD-163068a.jpg)
![Mimetite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-163075a.jpg]](db_pics/mdpics/MD-163075a.jpg)
![Mimetite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-164956a.jpg]](db_pics/mdpics/MD-164956a.jpg)
![Mimetite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-164956b.jpg]](db_pics/mdpics/MD-164956b.jpg)
![Wulfenite, Mimetite from San Francisco Mine (Cerro Prieto Mine), Cerro Prieto, Cucurpe, Mun. de Cucurpe, Sonora, Mexico [db_pics/mdpics/MD-165655a.jpg]](db_pics/mdpics/MD-165655a.jpg)
![Mimetite, Malachite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-165822a.jpg]](db_pics/mdpics/MD-165822a.jpg)
![Mimetite, Malachite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-165822b.jpg]](db_pics/mdpics/MD-165822b.jpg)
![Mimetite (Var: Campylite) from Dry Gill Mine, Caldbeck Fells, North and Western Region (Cumberland), Cumbria, England, UK [db_pics/mdpics/MD-166916a.jpg]](db_pics/mdpics/MD-166916a.jpg)
![Mimetite (Var: Campylite) from Dry Gill Mine, Caldbeck Fells, North and Western Region (Cumberland), Cumbria, England, UK [db_pics/mdpics/MD-166916b.jpg]](db_pics/mdpics/MD-166916b.jpg)
![Willemite, Mimetite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-167947a.jpg]](db_pics/mdpics/MD-167947a.jpg)
![Willemite, Mimetite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-167947b.jpg]](db_pics/mdpics/MD-167947b.jpg)
![Mimetite from Pingtouling Mine (Dashuihu Mine), Liannan Co., Qingyuan Prefecture, Guangdong Province, China [db_pics/mdpics/MD-168100a.jpg]](db_pics/mdpics/MD-168100a.jpg)
![Mimetite from Pingtouling Mine (Dashuihu Mine), Liannan Co., Qingyuan Prefecture, Guangdong Province, China [db_pics/mdpics/MD-168100b.jpg]](db_pics/mdpics/MD-168100b.jpg)
![Mimetite from Bilbao Mine, La Blanca, Mun. de Ojo Caliente, Zacatecas, Mexico [db_pics/mdpics/MD-169711a.jpg]](db_pics/mdpics/MD-169711a.jpg)
![Mimetite, Beaverite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-169812a.jpg]](db_pics/mdpics/MD-169812a.jpg)
![Mimetite from La Esperanza Mine, Durango, Mexico [db_pics/mdpics/MD-170561a.jpg]](db_pics/mdpics/MD-170561a.jpg)
![Mimetite, Quartz, Cerussite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-170563a.jpg]](db_pics/mdpics/MD-170563a.jpg)
![Wulfenite, Mimetite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-170576a.jpg]](db_pics/mdpics/MD-170576a.jpg)
![Mimetite, Smithsonite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-172008a.jpg]](db_pics/mdpics/MD-172008a.jpg)