1/1

Quartz (Var: Chalcedony) : SiO2

Copyright © Rob Lavinsky & irocks.com
 
 
minID: TX4-QAP

Quartz (Var: Chalcedony) : SiO2

Copyright © Rob Lavinsky & irocks.com  - This image is copyrighted. Unauthorized reproduction prohibited.
Dimensions: 18.2 cm x 8.6 cm x 5.5 cm

18.2 x 8.6 x 5.5 cm (largest). A stunning large cabinet pair from a sliced and polished hollow, very elongate colony of coral - you can see the pattern on the outside - that has been replaced or filled inside with botryoidal and banded chalcedony. The lustrous botryoids have a gorgeous variety of color. They look like pearls. This is one of those unusual cases where biology meets mineralogy. This dramatic specimen is from the Hauck Collection.


This photo has been shown 328 times

Photo added: 6th Jan 2010