Category:Quartz from Borovec

Media in category "Quartz from Borovec"

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

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  Star quartz - rock crystal - SiO2 (10974703266).jpg 4,000 × 3,000; 3.62 MB
  
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  Star quartz - rock crystal - SiO2 (10974799394).jpg 4,000 × 3,000; 3.58 MB