Apophyllite under polarized light Size:XL: 90 x 60cm with boarding in front of

with boarding in front of it covered with advertisements

Young Woman in a Shirt

Inside view of the Watch Tower and remains of London Wall

North view of St Paul's Cathedral

Apophyllite under polarized light Size:XL: 90 x 60cm with boarding in front ofThree figures showing a variety of the Faroe Islands mineral Apophyllite (named Tesselite by David Brewster) viewed under the microscope. Figure 1 Faroe Apophyllite viewed under polarized light at x50 magnification. Figure 2 Colours produced by Apophyllite 'when crossed by a plate of sulphate of lime, which gives one unified blue tint. Figure 3 Circular system of rings round the axis of 'Apophyllite Surcomposee.' Plate 21 from the paper 'Account of a