The Rare Earth Elements are of the Lanthanide and Actinide series. Most of the elements in the Actinide series are synthetic or man-made.

Brief Facts about the Discovery and History of the Element Lawrencium
Lawrencium was discovered by Albert Ghiorso, Torbjorn Sikkeland, Almon Larsh and Robert M. Latimer in 1961 at the Berkeley Radiation Laboratory (now called Lawrence Berkeley National Laboratory) in the University of California.

Occurrence of the element Lawrencium
Man-made

Common Uses of Lawrencium
No Known uses

The Properties of the Element Lawrencium
Name of Element : Lawrencium
Symbol of Element : Lr
Atomic Number: 103
Atomic Mass: (262.0) amu
Melting Point: Unknown
Boiling Point: Unknown
Number of Protons/Electrons: 103
Number of Neutrons: 159
Crystal Structure: Unknown
Density @ 293 K: Unknown
Color: Unknown