Hints for Crystal Drawing
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In our eReader you can find the full English version of the book. Read Hints for Crystal Drawing Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Hints for Crystal Drawing
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FcDiopfcase c axis = '53. Prism 2nd order {1120} and - Rhombohedron_022l}.
88 HINTS FOE CEYSTAL DEAWING It shows a combination of prism of the second order with the - rhombohedron {0221}- Draw the prism faces first with the aid of the portion of the plan above, dropping vertical pro- jectors from XX', the H traces of the prism faces, to cut lines drawn in the C projection at right angles to the H axes. Only one of these lines is shown at X".
As in the last figure, through the point P where the ...rhombohedron replaces the prism, draw lines parallel to the several H axes of the crystal ; these will give the /faxes of the rhombohedron. Join the ends of the -h di and - a z axes ; bisect the joining line.
Next find point L twice the height of the semi- vertical axes from P in accordance with the symbol {0221}- Draw lines from this point L through the bisections of the lines joining the H axes of the rhombohedron ; produce them to cut the vertical edges of the prism at k, /, n. Oblique lines drawn from k, /, ft, through the ends of the H axes of the rhombohedron and produced to cut the vertical edges of the prism in v, q, f, will give the other points required for the intersection of the rhombohedral and prismatic faces.
What to read after Hints for Crystal Drawing?
You can find similar books in the "Read Also" column, or choose other free books by Margaret Reeks to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
FcDiopfcase c axis = '53. Prism 2nd order {1120} and - Rhombohedron_022l}.
88 HINTS FOE CEYSTAL DEAWING It shows a combination of prism of the second order with the - rhombohedron {0221}- Draw the prism faces first with the aid of the portion of the plan above, dropping vertical pro- jectors from XX', the H traces of the prism faces, to cut lines drawn in the C projection at right angles to the H axes. Only one of these lines is shown at X".
As in the last figure, through the point P where the ...rhombohedron replaces the prism, draw lines parallel to the several H axes of the crystal ; these will give the /faxes of the rhombohedron. Join the ends of the -h di and - a z axes ; bisect the joining line.
Next find point L twice the height of the semi- vertical axes from P in accordance with the symbol {0221}- Draw lines from this point L through the bisections of the lines joining the H axes of the rhombohedron ; produce them to cut the vertical edges of the prism at k, /, n. Oblique lines drawn from k, /, ft, through the ends of the H axes of the rhombohedron and produced to cut the vertical edges of the prism in v, q, f, will give the other points required for the intersection of the rhombohedral and prismatic faces.
What to read after Hints for Crystal Drawing?
You can find similar books in the "Read Also" column, or choose other free books by Margaret Reeks to read onlineMoreLess
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