Joint surface in Central Granite. Large megacrysts of white alkali feldspara.
Scale: Coin is 20mm in diameter..
Grid reference: 945 277
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Joint surface in Central Granite. Large megacrysts of white alkali feldspara. Scale: Coin is 20mm in diameter.. Grid reference: 945 277
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This page is maintained by Roger Suthren
Last Modified: 23 October, 2008