Category:Bostonite
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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