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Mineral Specimens with Kaolinite
- 7 specimens selected
ex. Martin Lewadny
Very good and relatively large pseudomorph of Kaolinite after an Orthoclase Karlsbad twin. The off-white color is attractive, but what really makes this is the well-preserved habit of the twinned crystal. Overall, a very fine specimen from one of England’s most famous localities.
5.3 x 2.6 x 1.2 cm. A PRISTINE, CLASSIC and OLD-TIME pseudomorph from the St. Austell District of Cornwall. A very sharp, doubly terminated, Carlsbad-twinned orthoclase crystal has been pseudomorphed by a super-soft mineral, kaolinite.
7.1 x 3.0 x 2.6 cm. Piemontite is a rare, red epidote group silicate. This is a fine combination specimen from the famous No. 5 shaft at the Messina Mine of South Africa. Red piemontite microcrystals richly and preferentially cover three sides of a doubly terminated, sharply trigonal, transparent to translucent quartz crystal. Calcite crystals and kaolinite are additional, complimentary accessory minerals on the glassy quartz crystal. This is a fascinating doubly terminated quartz crystal, with one end being a sharp, single termination and the other end being multiply terminated. Ex. G.R. Glover Collection.
8.4 x 7.4 x 4.4 cm. Aesthetic diverging sprays of lustrous, flattened, black zinkenite crystals richly cover the 3-dimensional, platy, kaolinite matrix on this fine, rare, old-time specimen from the Itos Mine at Ouro City, Bolivia. This classic, seldom-seen combination specimen was collected by Sam Gordon on one of his several trips to Bolivia, Peru and Chile in the 1920s and 30s for the Philadelphia Academy of Sciences. The old label of "parakeeleyite" means that the zinkenite had not been correctly identified, when collected. Confirmed by analysis, on my end, via Bart Cannon's lab.
6.9 x 4.9 x 3.0 cm. Aesthetic diverging sprays of lustrous, flattened, black zinkenite crystals richly cover the curved, 3-dimensional, platy, kaolinite matrix on this fine, rare, old-time specimen from the Itos Mine at Ouro City, Bolivia. This classic, seldom-seen combination specimen was collected by Sam Gordon on one of his several trips to Bolivia, Peru and Chile in the 1920s and 1930s for the Philadelphia Academy of Sciences. Confirmed by analysis, on my end, via Bart Cannon’s lab. Ex. Philadelpia Academy Collection.
4.4 x 4.3 x 2.5 cm. Diverging sprays of lustrous, flattened, black zinkenite crystals richly cover the sculptural, platy, kaolinite matrix on this fine, rare, old-time specimen from the Itos Mine at Ouro City, Bolivia. This classic, seldom-seen combination specimen was collected by Sam Gordon on one of his several trips to Bolivia, Peru and Chile in the 1920s and 1930s for the Philadelphia Academy of Sciences. Confirmed by analysis, on my end, via Bart Cannon's lab.
The locality at Mt. Somma is actually the type locality for Leucite and one myriad of other species. The mountaind itself is an igneous mound that shows what remains when the cataclysmic eruption of Mt. Vesuvius took place in 79 A.D. which destoyed the city of Pompei. This historic specimen shows a great pseudomorph of reddish tan Kaolinite clay that replaced and maintained the shape of trapezohedra of Lecuite. The fact that this piece one belonged to the great gemologist George F. Kunz (Kunzite) is simply amazing, because you don''t see Kunz labels on the market very often. The label states that he acquired the piece in 1902. A very interesting and unique pseudomorph from this incredibly old and well documented European locality. 4.2 x 4.1 x 3.6cm
- 7 specimens selected
Rob Lavinsky, rob@irocks.com
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Mineral Specimens by species; or
by specimen id.
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share specimen![Kaolinite ps. Orthoclase twin from St Austell, Cornwall, England [db_pics/pics/lw18a.jpg]](db_pics/pics/lw18a.jpg)
![Kaolinite ps. Orthoclase twin from St Austell, Cornwall, England [db_pics/pics/lw18b.jpg]](db_pics/pics/lw18b.jpg)
![Kaolinite ps. Orthoclase twin from St Austell, Cornwall, England [db_pics/pics/lw18c.jpg]](db_pics/pics/lw18c.jpg)
![Kaolinite, Orthoclase from St Austell District, Cornwall, England, UK [db_pics/mdpics/MD-173719a.jpg]](db_pics/mdpics/MD-173719a.jpg)
![Piemontite, Quartz, Calcite, Kaolinite from No. 5 shaft, Messina mine, Messina District, Limpopo Province, South Africa [db_pics/mdpics/MD-188378a.jpg]](db_pics/mdpics/MD-188378a.jpg)
![Piemontite, Quartz, Calcite, Kaolinite from No. 5 shaft, Messina mine, Messina District, Limpopo Province, South Africa [db_pics/mdpics/MD-188378b.jpg]](db_pics/mdpics/MD-188378b.jpg)
![Zinkenite, Kaolinite from Itos Mine, Oruro City, Cercado Province, Oruro Department, Bolivia [db_pics/mdpics/MD-224940a.jpg]](db_pics/mdpics/MD-224940a.jpg)
![Zinkenite, Kaolinite from Itos Mine, Oruro City, Cercado Province, Oruro Department, Bolivia [db_pics/mdpics/MD-224940b.jpg]](db_pics/mdpics/MD-224940b.jpg)
![Zinkenite, Kaolinite from Itos Mine, Oruro City, Cercado Province, Oruro Department, Bolivia [db_pics/mdpics/MD-226344a.jpg]](db_pics/mdpics/MD-226344a.jpg)
![Zinkenite, Kaolinite from Itos Mine, Oruro City, Cercado Province, Oruro Department, Bolivia [db_pics/mdpics/MD-226344b.jpg]](db_pics/mdpics/MD-226344b.jpg)
![Zinkenite, Kaolinite from Itos Mine, Oruro City, Cercado Province, Oruro Department, Bolivia [db_pics/mdpics/MD-263844a.jpg]](db_pics/mdpics/MD-263844a.jpg)
![Kaolinite, Leucite from Fosso Cancherone, Sant'Anastasia, Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy [db_pics/mdpics/MD-70404a.jpg]](db_pics/mdpics/MD-70404a.jpg)