Category:Tephrite formations in the Czech Republic

Media in category "Tephrite formations in the Czech Republic"

The following 6 files are in this category, out of 6 total.

• 
  Hyalite opal on vesicular porphyritic leucite tephrite (Doupov Volcanic Complex, Oligocene to Lower Miocene; hills of the Doupov Mountains, north or west of Valec (Waltsch), northwestern Bohemia) 1 (14957100057).jpg 959 × 650; 645 KB
  
• 
  Hyalite opal on vesicular porphyritic leucite tephrite (Doupov Volcanic Complex, Oligocene to Lower Miocene; hills of the Doupov Mountains, north or west of Valec (Waltsch), northwestern Bohemia) 2 (15143283742).jpg 957 × 619; 480 KB
  
• 
  Hyalite opal on vesicular porphyritic leucite tephrite (Doupov Volcanic Complex, Oligocene to Lower Miocene; hills of the Doupov Mountains, north or west of Valec (Waltsch), northwestern Bohemia) 3 (14957099817).jpg 958 × 632; 484 KB
  
• 
  Sedlo - Kamenný amfiteátr 1.jpg 4,000 × 3,000; 4.13 MB
  
• 
  Sedlo - Kamenný amfiteátr 2.jpg 4,000 × 3,000; 3.45 MB
  
• 
  SedloUJelceTefrit.jpg 2,592 × 1,936; 2.33 MB