These Rare-Earth metals are very difficult to come by. If you can ever find them, they are generally incredibly expensive. Included with the set is a complete description and data for each element: 
density, melting point, etc.
A Certificate of Analysis is included for each sample, showing the total purity of the metal and quality data.
 All samples come in clear glass vials as shown in the images. The vials are clear borosilicate glass, 20mL, 2-3/8 inch high x 1-1/8 inch diameter and have a hard plastic cap.
An element symbol label is attached to each cover to clearly identify the element.
The Lanthanum, Cerium, Praseodymium, Neodymium, and Europium samples are stored under
mineral oil to protect them from air and moisture.

See recent news about Rare Earth Element Shortage HERE.

Lanthanide Series Rare-Earth Metals Element Set:$150.00