Category:Bostonite

Media in category "Bostonite"

The following 3 files are in this category, out of 3 total.

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  Dykes at Garthna Geo, Yesnaby - geograph.org.uk - 490020.jpg 480 × 640; 136 KB
  
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  Garthna Geo composite dyke.jpg 2,445 × 3,259; 2.06 MB
  
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  USGS anorthoclase.jpg 700 × 581; 399 KB