# Wismut Kristall und 1cm3 Wuerfel

- By: Alchemist-hp (talk) (www.pse-mendelejew.de)
- Date: 2010-12-20
- Classification: Photograph
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Wismut_Kristall_und_1cm3_Wuerfel.jpg)
- Rights: [FAL](http://artlibre.org/licence/lal/en)
- Picture: https://invisiblenetwork.ai/thumbs/commons/thumb/1/1f/Wismut_Kristall_und_1cm3_Wuerfel.jpg/1920px-Wismut_Kristall_und_1cm3_Wuerfel.jpg
- Who can see it: Teens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

The chemical element bismuth as a synthetic made crystal. The iridescent surface is a very thin layer of oxidation. Beside it is a high purity (99.99 %) 1 cm3 bismuth cube for comparison.