Kaolinite ps. after Orthoclase - image 1
Kaolinite ps. after Orthoclase - image 2
specimen video

Kaolinite ps. after Orthoclase

Unknown Owner
Known colloquially as "pigs eggs" these pseudomorphs of Kaolinite after Orthoclase crystals were found occasionally within the China Clay pits in Cornwall. This one, from Goonbarrow China Clay Pit, near Bugle in the St. Austell District, displays a textbook twinned Orthoclase crystal with a third smaller crystal cutting across the twins. The edges of the crystals are very well defined - usually these crystals are quite rounded - and the crystals are of an excellent size, at 5.7 cm in length. It would look perfect alongside a wooden crystal model showing this textbook twinning in Orthoclase.

Product details

SizeSmall Cabinet
Dimensions4.2 x 5.9 x 1.5 cm
Added on12/02/2024

Known provenance

DateCollectorAcquisition price
12/2025Unknown Owner$250.00
Crystal ClassicsNot disclosed