# Hf-crystal bar

- By: Alchemist-hp (talk) (www.pse-mendelejew.de)
- Date: 2009-04-20
- Classification: Photograph
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Hf-crystal_bar.jpg)
- Rights: [CC BY-SA 3.0 de](https://creativecommons.org/licenses/by-sa/3.0/de/deed.en)
- Picture: https://upload.wikimedia.org/wikipedia/commons/thumb/3/38/Hf-crystal_bar.jpg/1920px-Hf-crystal_bar.jpg
- Who can see it: Teens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

A sample of a 1,7kg Hafnium crystal bar, made by van Arkel-de Boer process. The real background is removed. The shadow is added via Photoshop.