Summaryedit

Camera Model	Canon 5D Mark II
Lens	Zeiss Makro-Planar T*2/100mm ZE
Notes	made by focus stacking software from 20x single 16bit TIFF shots, taken on a white glass plate.

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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Focus stack with Helicon Focus of 44 images..

Licensingedit

Copyleft: This work of art is free; you can redistribute it and/or modify it according to terms of the Free Art License. You will find a specimen of this license on the Copyleft Attitude site as well as on other sites. https://artlibre.org/licence/lal/enFALFree Art Licensefalsetrue

This file is licensed under the Creative Commons ‘Attribution-NonCommercial-NonDerivative 3.0 (US)’ Licence: https://creativecommons.org/licenses/by-nc-nd/3.0/ Diese Datei steht unter der Lizenz Creative Commons „Namensnennung-keine kommerzielle Nutzung-keine Bearbeitung 3.0 US“ Lizenz: https://creativecommons.org/licenses/by-nc-nd/3.0/deed.de

Assessmentedit

This image was selected as picture of the day on Wikimedia Commons for 6 November 2011. It was captioned as follows: English: Purest Vanadium 99.9 %, three samples of a crystal bar showing different crystal textures and an on air greenish oxidized surface, made by crystal bar process, as well as a highly pure (99,95 % = 3N5) 1 cm3 vanadium cube for comparison. Other languages:  Dansk: Reneste vanadium 99,9 %, tre eksempler på krystalstænger, der viser forskellige krystalstrukturer, hvoraf én har en grønlig, af luften oxideret overflade, alle skabt ved krystalstangsprocessen. Desuden en 1 cm³ vanadiumterning af høj renhed (99,95 % = 3N5) til sammenligning. English: Purest Vanadium 99.9 %, three samples of a crystal bar showing different crystal textures and an on air greenish oxidized surface, made by crystal bar process, as well as a highly pure (99,95 % = 3N5) 1 cm3 vanadium cube for comparison. Español: Vanadio puro (99,9%): tres muestras de barra cristalina con diferentes texturas y una superficie verdosa oxidada al aire, así como un cubo de alta pureza (99,95% = 3N5) de 1 cm³ para comparar. Français: Trois barres de vanadium cristallisé pur à 99,9 % obtenues par le procédé Van-Arkel-de-Boer (échantillons de la collection d'Ethan Currens). À titre comparatif, un cube de 1 cm3 de vanadium apparaît. Les pièces se trouvent sur une plaque de verre blanc. Italiano: Vanadio puro al 99,9%, tre campioni di barra cristallina con differente struttura superficiale ottenute mediante processo van Arkel-de Boer, a confronto con un cubo di 1 cm3 di vanadio puro al 99,95%. Magyar: Három, egyaránt Arkel–de Boer eljárással előállított, 99,9% tisztaságú, de eltérő felületi textúrájú vanádiumrúd (zöldes árnyalatú felületi oxidréteggel) és mellettük összehasonlításként egy 1 cm élhosszú, 99,95% tisztaságú vanádiumkocka. Nederlands: Drie verschillende staven van zuiver (99,9%) vanadium, met een blokje zuiver vanadium ter vergelijking. De staven tonen verschillende structuren en in sommige gevallen oxidatie Română: Trei bare de vanadiu cristalizat de înaltă puritate (99,9%), obținute prin procedeul van Arkel-de Boer, prezentând texturi diferite ale suprafețelor. Acestora le este alăturat un cub de vanadiu de 1cm3 (puritate 99,95% = 3N5) pentru comparație. Русский: Три образца чистого ванадия (99.9 %) с различной кристаллической текстурой и окислившейся на воздухе поверхности. Для сравнения дан 1 куб. см особо чистого ванадия (99,95 % = 3N5) Українська: Три зразки кристалічних брусків чистого ванадію 99,9% з різними текстурами кристала (зеленуваті поверхні — наслідок окислення в повітрі), отримані методом ван Аркеля-де Бура (йодидним методом), а також куб об'ємом 1 см3 з ванадію високої чистоти 99,95% для порівняння. 中文: 纯度为99.9%的钒，三个样品呈现出不同的表面纹理和氧化程度，右侧为纯度为99,95%的1cm3钒晶体作为比较。

Photo's description:

Deutsch: Reine Vanadium 99,9 % "crystal bars" nach dem Van-Arkel-de-Boer-Verfahren hergestellt, sowie für den Größenvergleich ein reiner (99,95 %) 1 cm3 Vanadium-Würfel. Das Bild zeigt unterschiedliche Kristallisationsstrukturen sowie auch eine an der Luft grünlich oxidierte Oberfläche das Vanadiums. Purest Vanadium 99.9 %, three samples of a crystal bar showing different crystal textures and an on air greenish oxidized surface, made by crystal bar process (from the collection of Ethan Currens), as well as a highly pure (99,95 % = 3N5) 1 cm3 vanadium cube for comparison. Español: Vanadio puro (99,9%): tres muestras de barra cristalina con diferentes texturas y una superficie verdosa oxidada al aire, así como un cubo de alta pureza (99,95% = 3N5) de 1 cm³ para comparar. Français: Trois barres de vanadium cristallisé pur à 99,9 % obtenues par le procédé Van-Arkel-de-Boer (échantillons de la collection d'Ethan Currens). À titre comparatif, un cube de 1 cm3 de vanadium apparaît. Les pièces se trouvent sur une plaque de verre blanc. Polski: Pręt z krystalicznego wanadu o czystości 99,9 % otrzymany w procesie jodkowym i oraz sześcian (1 cm3) wykonany z wanadu o czystości (99,95 %). Română: Trei bare de vanadiu cristalizat de înaltă puritate (99,9%), obținute prin procedeul van Arkel-de Boer, prezentând texturi diferite ale suprafețelor. Acestora le este alăturat un cub de vanadiu de 1cm3 (puritate 99,95% = 3N5) pentru comparație. 中文: 纯度为99.9%的钒，三个样品有着不同的结晶的纹理和一个在空气中有着绿色氧化膜的表面。右边是1个高纯(3.5N,即99.95%)的1立方厘米的钒立方体作为对比。