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Uploaded on:
09/03/2009 06:54:30
Digital Asset
File Size:
278.74 KB
710 x 1000 pixels
1848 views 5 downloads
P number: P208054
Old photograph number: A08132
Caption: The wolfram lode at Castle an Dinas Mine, Cornwall.
Description: Castle an Dinas Wolfram Mine, St. Columb Major. The photograph shows the wolfram lode exposed in the back of the 5th Level, south of New Shaft. About 2 feet wide it consists of quartz with clusters of wolfram crystals along the edges. The killas, or clay slate country rock, adjacent to the lode is tourmalinized and appears dark for a foot or so; beyond the tourmalinization it is white, soft and friable. The wolfram lode ranges from one to six feet wide but averages 3 feet and occasional branches leave it. It has a constant direction, verticality and content but southwards it splits into two or three branches each about one foot wide but still carrying wolfram.
Date taken: 01/08/1945
Photographer: Rhodes, J.
Copyright statement: Crown
X longitude/easting: 194500
Y latitude/northing: 62500
Coordinate reference system, ESPG code: 27700 (OSGB 1936 / British National Grid)
Orientation: Portrait
Size: 278.74 KB; 710 x 1000 pixels; 60 x 85 mm (print at 300 DPI); 188 x 265 mm (screen at 96 DPI);
Average Rating: Not yet rated
Categories: Unsorted Images, Geoscience subjects/ Economic geology/ Metalliferous mining: wolfram  


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