• Kaolinite pseudomorph after Orthoclase
  • Kaolinite pseudomorph after Orthoclase
  • Kaolinite pseudomorph after Orthoclase
Pseudomorphs

Kaolinite pseudomorph after Orthoclase

$900.00   €799  £680.00 approx.  

This specimen is priced in US dollars, all other prices are approximate.

ID: CC16797
The superb Kaolinite pseudomorphs after Orthoclase Feldspar found in many of Cornwall’s China clay pits (CCPs) were known to the miners as ‘Pig’s Eggs’, so this varietal name has also been adopted by collectors. The typical pseudomorph is perhaps about up to 6 x 4 cm, so good quality large specimens such as this are very seldom seen either for sale or in collections. Composed of fine-grained Kaolinite, this example is very pure with no apparent included mica. It was collected on 30th May 1980 when Goonbarrow CCP could still be accessed by collectors; a large clay pit located by the village of Bugle, north of St. Austell in Cornwall. The Kaolinite forms pseudomorphs after two intergrown Carlsbad twin Orthoclase crystals. A terrific and magnificent cabinet specimen, formerly in the collection of Maurice Grigg and collected by him on said date.

Details

Dimensions
8.8 × 10.0 × 1.8 cm
Categories
Pseudomorphs, Silicates
Locality
Goonbarrow China Clay Pit, Bugle, Treverbyn, St. Austell District, Cornwall, England, Europe

Minerals on Specimen

Minerals on specimen
Orthoclase

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