https://dictionary.iucr.org/index.php?action=history&feed=atom&title=Weiss_parameters
Weiss parameters - Revision history
2026-06-04T02:44:33Z
Revision history for this page on the wiki
MediaWiki 1.30.0
https://dictionary.iucr.org/index.php?title=Weiss_parameters&diff=4650&oldid=prev
BrianMcMahon: Tidied translations.
2017-11-20T14:48:20Z
<p>Tidied translations.</p>
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<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><<del class="diffchange diffchange-inline">Font </del>color="blue"> Paramètres de Weiss</<del class="diffchange diffchange-inline">Font</del>> (''Fr''). <<del class="diffchange diffchange-inline">Font </del>color="red"> Weiss-Parameter </<del class="diffchange diffchange-inline">Font</del>> (''Ge''). <<del class="diffchange diffchange-inline">Font </del>color="<del class="diffchange diffchange-inline">green</del>"> <del class="diffchange diffchange-inline">Parámetros de </del>Weiss</<del class="diffchange diffchange-inline">Font</del>> (''<del class="diffchange diffchange-inline">Sp</del>''). <<del class="diffchange diffchange-inline">Font </del>color="<del class="diffchange diffchange-inline">brown</del>"> <del class="diffchange diffchange-inline">Параметры Вайс </del></<del class="diffchange diffchange-inline">Font</del>> (''<del class="diffchange diffchange-inline">Ru</del>''). <<del class="diffchange diffchange-inline">Font </del>color="<del class="diffchange diffchange-inline">black</del>"> <del class="diffchange diffchange-inline">Parametri di Weiss</del></<del class="diffchange diffchange-inline">Font</del>> (''<del class="diffchange diffchange-inline">It</del>''). <<del class="diffchange diffchange-inline">Font </del>color="<del class="diffchange diffchange-inline">purple</del>"> <del class="diffchange diffchange-inline">ワイスパラメーター</del></<del class="diffchange diffchange-inline">Font</del>> (''<del class="diffchange diffchange-inline">Ja</del>'').</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><<ins class="diffchange diffchange-inline">font </ins>color="blue">Paramètres de Weiss</<ins class="diffchange diffchange-inline">font</ins>> (''Fr''). <<ins class="diffchange diffchange-inline">font </ins>color="red">Weiss-Parameter</<ins class="diffchange diffchange-inline">font</ins>> (''Ge''). <<ins class="diffchange diffchange-inline">font </ins>color="<ins class="diffchange diffchange-inline">black</ins>"><ins class="diffchange diffchange-inline">Parametri di </ins>Weiss</<ins class="diffchange diffchange-inline">font</ins>> (''<ins class="diffchange diffchange-inline">It</ins>''). <<ins class="diffchange diffchange-inline">font </ins>color="<ins class="diffchange diffchange-inline">purple</ins>"><ins class="diffchange diffchange-inline">ワイスパラメーター</ins></<ins class="diffchange diffchange-inline">font</ins>> (''<ins class="diffchange diffchange-inline">Ja</ins>''). <ins class="diffchange diffchange-inline"> </ins><<ins class="diffchange diffchange-inline">font </ins>color="<ins class="diffchange diffchange-inline">brown</ins>"><ins class="diffchange diffchange-inline">Параметры Вайс</ins></<ins class="diffchange diffchange-inline">font</ins>> (''<ins class="diffchange diffchange-inline">Ru</ins>''). <<ins class="diffchange diffchange-inline">font </ins>color="<ins class="diffchange diffchange-inline">green</ins>"><ins class="diffchange diffchange-inline">Parámetros de Weiss</ins></<ins class="diffchange diffchange-inline">font</ins>> (''<ins class="diffchange diffchange-inline">Sp</ins>'').</div></td></tr>
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BrianMcMahon
https://dictionary.iucr.org/index.php?title=Weiss_parameters&diff=4222&oldid=prev
BrianMcMahon: Style edits to align with printed edition
2017-05-20T11:38:09Z
<p>Style edits to align with printed edition</p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 11:38, 20 May 2017</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
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<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><Font color="blue"> Paramètres de Weiss</Font> (''Fr''). <Font color="red"> Weiss-Parameter </Font> (''Ge''). <Font color="green"> Parámetros de Weiss</Font> (''Sp''). <Font color="brown"> Параметры Вайс </Font> (''Ru''). <Font color="black"> Parametri di Weiss</Font> (''It''). <Font color="purple"> ワイスパラメーター</Font> (''Ja'')</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><Font color="blue"> Paramètres de Weiss</Font> (''Fr''). <Font color="red"> Weiss-Parameter </Font> (''Ge''). <Font color="green"> Parámetros de Weiss</Font> (''Sp''). <Font color="brown"> Параметры Вайс </Font> (''Ru''). <Font color="black"> Parametri di Weiss</Font> (''It''). <Font color="purple"> ワイスパラメーター</Font> (''Ja'')<ins class="diffchange diffchange-inline">.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l6" >Line 6:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Weiss parameters are the reciprocal of Miller indices, each followed by the corresponding axis symbols.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Weiss parameters are the reciprocal of Miller indices, each followed by the corresponding axis symbols.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''Example'''. Weiss parameters <del class="diffchange diffchange-inline">2a</del>:<del class="diffchange diffchange-inline">3b</del>:<del class="diffchange diffchange-inline">1c </del>indicate that a face intercepts the '''a''' axis at twice the a<sub>o</sub> units and the '''b''' axis at three times b<sub>o</sub> units as it cuts the '''c''' axis in c<sub>o</sub> units. The first plane of the family to which this face belongs has intercepts at 1/3, 1/2 and 1/6 on '''a''', '''b''', and '''c''' respectively, so that the corresponding Miller indices are (326).</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''Example'''. Weiss parameters <ins class="diffchange diffchange-inline">2''a''</ins>:<ins class="diffchange diffchange-inline">3''b''</ins>:<ins class="diffchange diffchange-inline">1''c'' </ins>indicate that a face intercepts the '''a''' axis at twice the <ins class="diffchange diffchange-inline">''</ins>a<sub>o</sub><ins class="diffchange diffchange-inline">'' </ins>units and the '''b''' axis at three times <ins class="diffchange diffchange-inline">''</ins>b<sub>o</sub><ins class="diffchange diffchange-inline">'' </ins>units as it cuts the '''c''' axis in <ins class="diffchange diffchange-inline">''</ins>c<sub>o</sub><ins class="diffchange diffchange-inline">'' </ins>units. The first plane of the family to which this face belongs has intercepts at 1/3, 1/2 and 1/6 on '''a''', '''b''', and '''c''' respectively, so that the corresponding Miller indices are (326).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">=</del>== Reference <del class="diffchange diffchange-inline">=</del>==</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>== Reference ==</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Weiss, C.S. (1817). Ueber eine verbesserte Methode für die Bezeichung der verschiedenen Flächen eines Krystallisationssystemes; nebst Bemerkungen über den Zustand von Polarisierung der Seiten in den Linien der krystallinischen Structur<del class="diffchange diffchange-inline">. ''Abhandlungen der Königlichen Akademie der Wissenschaften in Berlin</del>''<del class="diffchange diffchange-inline">, 286-336 </del>([https://babel.hathitrust.org/cgi/pt?id=umn.31951d00016117y;view=1up;seq=304 digitized version available online])<del class="diffchange diffchange-inline">.</del></div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Weiss, C. S. (1817). <ins class="diffchange diffchange-inline">''Abhandlungen der Königlichen Akademie der Wissenschaften in Berlin'', 286-336. ''</ins>Ueber eine verbesserte Methode für die Bezeichung der verschiedenen Flächen eines Krystallisationssystemes; nebst Bemerkungen über den Zustand von Polarisierung der Seiten in den Linien der krystallinischen Structur'' ([https://babel.hathitrust.org/cgi/pt?id=umn.31951d00016117y;view=1up;seq=304 digitized version available online])</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category:History of crystallography]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category:History of crystallography]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Morphological crystallography]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Morphological crystallography]]</div></td></tr>
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BrianMcMahon
https://dictionary.iucr.org/index.php?title=Weiss_parameters&diff=3896&oldid=prev
MassimoNespolo: Reference and link
2017-04-12T12:07:54Z
<p>Reference and link</p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 12:07, 12 April 2017</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l2" >Line 2:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The '''Weiss parameters''', introduced by Christian Samuel Weiss in <del class="diffchange diffchange-inline">1818</del>, are the ancestors of the [[Miller indices]]. They give an approximate indication of a face orientation with respect to the crystallographic axes, and were used as a symbol for the face.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The '''Weiss parameters''', introduced by Christian Samuel Weiss in <ins class="diffchange diffchange-inline">1817</ins>, are the ancestors of the [[Miller indices]]. They give an approximate indication of a face orientation with respect to the crystallographic axes, and were used as a symbol for the face.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Weiss parameters are the reciprocal of Miller indices, each followed by the corresponding axis symbols.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Weiss parameters are the reciprocal of Miller indices, each followed by the corresponding axis symbols.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''Example'''. Weiss parameters 2a:3b:1c indicate that a face intercepts the '''a''' axis at twice the a<sub>o</sub> units and the '''b''' axis at three times b<sub>o</sub> units as it cuts the '''c''' axis in c<sub>o</sub> units. The first plane of the family to which this face belongs has intercepts at 1/3, 1/2 and 1/6 on '''a''', '''b''', and '''c''' respectively, so that the corresponding Miller indices are (326).</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''Example'''. Weiss parameters 2a:3b:1c indicate that a face intercepts the '''a''' axis at twice the a<sub>o</sub> units and the '''b''' axis at three times b<sub>o</sub> units as it cuts the '''c''' axis in c<sub>o</sub> units. The first plane of the family to which this face belongs has intercepts at 1/3, 1/2 and 1/6 on '''a''', '''b''', and '''c''' respectively, so that the corresponding Miller indices are (326).</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">=== Reference ===</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Weiss, C.S. (1817). Ueber eine verbesserte Methode für die Bezeichung der verschiedenen Flächen eines Krystallisationssystemes; nebst Bemerkungen über den Zustand von Polarisierung der Seiten in den Linien der krystallinischen Structur. ''Abhandlungen der Königlichen Akademie der Wissenschaften in Berlin'', 286-336 ([https://babel.hathitrust.org/cgi/pt?id=umn.31951d00016117y;view=1up;seq=304 digitized version available online]).</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category:History of crystallography]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category:History of crystallography]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Morphological crystallography]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Morphological crystallography]]</div></td></tr>
</table>
MassimoNespolo
https://dictionary.iucr.org/index.php?title=Weiss_parameters&diff=3472&oldid=prev
MassimoNespolo: Created page with "<Font color="blue"> Paramètres de Weiss</Font> (''Fr''). <Font color="red"> Weiss-Parameter </Font> (''Ge''). <Font color="green"> Parámetros de Weiss</Font> (''Sp''). <Font co..."
2015-02-25T03:45:00Z
<p>Created page with "<Font color="blue"> Paramètres de Weiss</Font> (''Fr''). <Font color="red"> Weiss-Parameter </Font> (''Ge''). <Font color="green"> Parámetros de Weiss</Font> (''Sp''). <Font co..."</p>
<p><b>New page</b></p><div><Font color="blue"> Paramètres de Weiss</Font> (''Fr''). <Font color="red"> Weiss-Parameter </Font> (''Ge''). <Font color="green"> Parámetros de Weiss</Font> (''Sp''). <Font color="brown"> Параметры Вайс </Font> (''Ru''). <Font color="black"> Parametri di Weiss</Font> (''It''). <Font color="purple"> ワイスパラメーター</Font> (''Ja'')<br />
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The '''Weiss parameters''', introduced by Christian Samuel Weiss in 1818, are the ancestors of the [[Miller indices]]. They give an approximate indication of a face orientation with respect to the crystallographic axes, and were used as a symbol for the face.<br />
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Weiss parameters are the reciprocal of Miller indices, each followed by the corresponding axis symbols.<br />
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'''Example'''. Weiss parameters 2a:3b:1c indicate that a face intercepts the '''a''' axis at twice the a<sub>o</sub> units and the '''b''' axis at three times b<sub>o</sub> units as it cuts the '''c''' axis in c<sub>o</sub> units. The first plane of the family to which this face belongs has intercepts at 1/3, 1/2 and 1/6 on '''a''', '''b''', and '''c''' respectively, so that the corresponding Miller indices are (326).<br />
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[[Category:History of crystallography]]<br />
[[Category:Morphological crystallography]]</div>
MassimoNespolo