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Similar composite barite crystals were collected by Sir A. Russell in 1930 from Nentsberry Mine (Sun vein), Alston, Cumbria. This morphology is said to be characteristic of deposits in which barium carbonate minerals are common (Symes & Young 2008, pg 129).
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Date/Time | 10-Aug-2012 18:12:51 |
Make | Sony |
Model | SLT-A77V |
Flash Used | No |
Focal Length | 105 mm |
Exposure Time | 1/13 sec |
Aperture | f/22 |
ISO Equivalent | 200 |
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Copyright Ru Smith