| This would be quite in accordance with the chemical notion of allotropy. |
| Elements exhibiting allotropy include tin, carbon, sulfur, phosphorus, and oxygen. |
| And this hypothesis is entirely in harmony with the phenomena of allotropy. |
| Important for the uniqueness of steel is the allotropy of iron that is, its existence in two crystalline forms. |
| Before leaving this phase of inorganic chemistry, we may mention other historical examples of allotropy. |
| The phenomenon of allotropy is exhibited when an element exists in two or more distinct forms. |
