![Checked content](../../checked-content.png)
File:CaF2 polyhedra.png
![File:CaF2 polyhedra.png](../2896/289671.png)
Size of this preview: 640 × 427 pixels.
File usage
The following pages on Schools Wikipedia link to this image (list may be incomplete):
The best way to learn
SOS Children's Villages has brought Wikipedia to the classroom. SOS Children's Villages helps more than 2 million people across 133 countries around the world. Sponsoring a child is a great way to help children who need your support.