Solids
Highest density, lowest energy form
Densities of solids only slightly greater than densities of corresponding liquids; atoms or molecules not really in closer proximity than in liquid
Solids do not deform readily; atoms or molecules are in relatively fixed positions
The attractive forces between molecules or atoms are significant, but crystallinity, the ordered internal arrangement of atoms or molecules, is characteristic feature of solids
Crystalline materials have the possibility of exhibiting a range of physical properties
- diamond and graphite
- Sillimanite, andalusite, and kyanite
- Olivine and spinel (Ringwoodite)
- Ice I, ice II, etc. to Ice X