Limestone in Many Forms

The Upright Door Sides

The upright panels on either side of the entrance appear to be Botticcino Marble from Italy. There are light patches of white where the original fossils have been dissolved by heat and pressure and have recrystallized. Faint orange veins, called stylolites, were caused by local pressure-melting and the redeposition of clay pieces included in the original limestone. But tap the panels. They are Formica replacements for the originals, which gradually fell off. You will notice the Botticcino shapes repeat themselves several times in the height, like wallpaper. Some of the original marble panels were still in place, held on by careless dabs of mortar, until 1985, when they gave way to something even more temporary.


Botticcino Marble

The drawing shows a stylolite derived from a clay inclusion.


Sarah Siddon's Statue.

Sarah Siddon's Statue on Paddington Green.

White Carrara Marble, almost free of streaks, is more valuable than the Sicilian as it can be used for sculpture. The Sarah Siddons Monument on Paddington Green, depicting her as The Tragic Muse', is an example of a Carrara marble statue on a Portland Stone base.

Marble is a metamorphic rock. The original limestone of which it was made has been heated by contact with near­by, hotter rocks so that the material has melted. Fossils have dissolved with the rest of the limestone and the whole has been recrystallized into marble. For those wishing to see marble in all its variety, the interior of Westminster Cathedral is one of the richest exhibitions in London.

The  1887  Mansion  Flats  in  Chapel Street,
opposite Marks and Spencer's

The quality of the brickwork is not clear from the photograph, but one can gather something of its skill from the panel detail.

 

The   Entrance to 25 Chapel   Street.


25 Chapel Street
This photograph of the side of the entrance to 25 Chapel St, in 1988, shows the Granite step, the horizontal Serpentine bands above and below the glass, the Sicilian Marble panelling inside, and the vertical plastic panel made to imitate Botticirto Marble, with a line of adhesive that has oozed out near the bottom.
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Updated: August 16, 2011