Clipart tagged: ‘dodecahedral’
!["At the freezing point [phosphorus] hardens, becomes brittle, and shows, on being broken, evidences of crystalline structure, the crystals being dodecahedral." —Hallock 1905](https://etc.usf.edu/clipart/36100/36184/phosphorus_36184_mth.gif)
Phosphorus
"At the freezing point [phosphorus] hardens, becomes brittle, and shows, on being broken, evidences…
"At the freezing point [phosphorus] hardens, becomes brittle, and shows, on being broken, evidences…