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17/03/2009 00:41:56
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P number: P527769
Caption: Limestone from Lannilane Quarry, Straiton, Ayrshire.
Description: Specimen of pale crystalline limestone from the Lannielane Lime Works 1 mile south-west of Blair farm, 5 miles west-south-west of Straiton, Ayrshire. At this locality a quarry was first opened up, and then short mines were driven from the quarry face. The specimen is Old Red Sandstone in age. British Geological Survey Petrology Collection sample number MC 7545. The thickness of the bed is 12 feet and it dips north-west at 40 degrees under an overburden of several feet of rock. Reserves are large, but the steep dip makes mining almost imperative. The quarry might be extended to the south-west but the overburden of drift increases in this direction. An analysis on another specimen at this locality (S.L. 156) indicates a limestone of a high degree of purity : calcium carbonate, 92.05 per cent; magnesium carbonate, 2.48 per cent insoluble residue 5.92 per cent. Another cornstone bed, 4 feet thick, below the horizon of the worked seam, is exposed in the stream close at hand. Analysis (S.L. 155) has shown this band to be of great purity: calcium carbonate 97.98 per cent; magnesium carbonate 1.11 per cent; insoluble residue 1.72 per cent.
Date taken: 25/06/1905
Photographer: Unknown
Copyright statement: Unknown
Orientation: Landscape
Size: 258.81 KB; 1000 x 665 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI);
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