Category:Chalcedony and quartz from Rožná

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Media in category "Chalcedony and quartz from Rožná"

The following 2 files are in this category, out of 2 total.

Chalcedony, quartz SiO2 (24953525585).jpg 4,000 × 3,000; 3.62 MB
Chalcedony, quartz SiO2 (24953526905).jpg 4,000 × 3,000; 3.6 MB

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