This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Iceviistructureru. en The crystal structure of ice VII The crystal structure of ice VII Transferred from org en transferred to Commons by User MGA using de php CommonsHelper br Original text selfmade Yadevol talk Original uploader was Yadevol at org en Released into the public domain by the author en Yadevol original