Uploaded on:
2009-03-18 12:39:35.0
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P number: P553024
Caption: Great Estuarine limestone, marmorized near contact with granophyre. Allt Eoghainn, 200 yards south of old main road. Strollamus, Skye. Skye (Inverness).
Description: A patchily grey and white altered limestone, the grey part effervescing freely with cold dilute HCl, while the white part is insoluble and shows the fibrous character of wollastonite. In thin section the rock is seen to be composed of sutured grains of calcite and large aggregates of fibrous and prismatic wollastonite. Idiomorphic, birefringent grossular occurs in small crystals set both in the calcite and in the wollastonite. Colourless epidote forming small aggregates is rare. Clots of quartz act as centres for wollastonite growths and are traversed by many needles of wollastonite. Occasionally small prisms of diopside occur on the periphery of these clots. Limestone with calcsilicates, varigrained, granoblastic. SL0243. Britrocks S35343. Magnification x40. Light PPL.
Date taken: Wed Jan 21 00:00:00 GMT 2004
Photographer: Sutherland, A.
Copyright statement: NERC
Additional information: Description from: Limestones of Scotland: chemical analyses and petrography. Edinburgh : HMSO, 1956.
Orientation: Landscape
Size: 337.79 KB; 1000 x 750 pixels; 85 x 64 mm (print at 300 DPI); 265 x 198 mm (screen at 96 DPI);
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