Credit: © The Royal Society
Image number: RS.10042
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Apophyllite under polarized light
Date
1823
Creator
William Home Lizars (1788 - 1859, British) , Artist
Object type
Library reference
Tracts/X40/7
Material
Technique
Dimensions
height (print): 258mm
width (print): 208mm
width (print): 208mm
Subject
Description
Three 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 remarkable structure in Apophyllite, with observations on the optical peculiarities of that mineral”, by David Brewster, originally published in Transactions of the Royal Society of Edinburgh, volume 9 (1823) pp.317-336. Inscribed upper right ‘PLATE XI Engraved for the Royal Soc. Trans. Vol.IX page 317.’ Inscribed bottom right ‘Coloured & Eng’d by W.H.Lizars.’
Sir David Brewster (1781-1868) Scottish physicist, was elected a Fellow of the Royal Society in 1815.
Plate 21 from the paper “Account of a remarkable structure in Apophyllite, with observations on the optical peculiarities of that mineral”, by David Brewster, originally published in Transactions of the Royal Society of Edinburgh, volume 9 (1823) pp.317-336. Inscribed upper right ‘PLATE XI Engraved for the Royal Soc. Trans. Vol.IX page 317.’ Inscribed bottom right ‘Coloured & Eng’d by W.H.Lizars.’
Sir David Brewster (1781-1868) Scottish physicist, was elected a Fellow of the Royal Society in 1815.