Further information Description Yttrium has a silvery-metallic lustre. Yttrium turnings ignite in air.
Yttrium is found in most rare-earth minerals.
Both values are quoted on the Pauling scale. The following CrystalMaker image represents the solid state structure. For most elements, the most stable allotrope is illustrated. This section gives some data for naturally occurring isotopes. Copyright 1997 Mark Winter Department of Chemistry at the University of Sheffield , Sheffield S3 7HF, England.