• Quartz var. Chalcedony
  • Quartz var. Chalcedony
Silicates

Quartz var. Chalcedony

ID: CC13326
This rather delightfully structured Chalcedony reminds me of the Devils Tower in Wyoming, made internationally famous in Close Encounters of the Third Kind!  Sitting on a black matrix of what is probably sulphide-included Chalcedony, stalactitic Chalcedony in narrow tubular columns rise vertically, changing from a beautiful lavender duck egg-blue to salmon-flesh-pink.  The Chalcedony also forms small spheres of 1 to 2 mm diameter, which are scattered all over the columns, while adopting the colour of the columns to which they are attached.  A most rare and unusual Chalcedony from one of the famous Chalcedony-rich mines of Cornwall, but whose specific name has gone unrecorded.

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Details

Dimensions
11.0 × 7.0 × 6.5 cm
Categories
Quartz and Agate, Silicates
Locality
Cornwall, England, Europe

Minerals on Specimen

Minerals on specimen
Quartz

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