| P number: | P552515 |
|---|---|
| Caption: | Charlestown Station Limestone. Old Quarry, west side of Balneil Den, 0.75 mile north-east of Colinsburgh. Fife Region. |
| Description: | Massive grey, crystalline dolomite with conspicuous crinoid ossicles. Composed of subhedral rhombs of dolomite, 0.1 to 0.5 mm grain, and larger irregularly bounded crystals representing crinoid remains which though only slightly recrystallized to small rhombs are entirely dolomite. The refractive index, omega = l.695 generally but occasionally rather higher, indicates that the dolomite is ankerite with a content of up to 10 per cent of ferrous carbonate. Limonitic matter fills interstices and in places coats the dolomite crystals. Grains of oxidized pyrite are present. Ferriferous dolomite, medium-grained, zoophasmic, uneven mosaic. SL0034. Britrocks S34456(a). Magnification x40. Light XPL. |
| 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. 10 minutes in Logwood stain. |
| Orientation: | Landscape |
| Size: | 356.24 KB; 1000 x 750 pixels; 85 x 64 mm (print at 300 DPI); 265 x 198 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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