Image: Aluminium bar surface etched
Description: Bar of (Al) Aluminium crystal growth raw material, with visible dendrites on the macroetched surface, purity 99,9998 %, sector size about 55 × 37 mm (from the collection of Ethan Currens).
Title: Aluminium bar surface etched
Credit: Own work
Author: Alchemist-hp (talk) (www.pse-mendelejew.de)
Usage Terms: Free Art License
License Link: http://artlibre.org/licence/lal/en
Attribution Required?: Yes