Trilobites, a fossilized gemstone hold the potential that links the energies or the forces of the overall torso to the grounding energies of the Mother Earth. The vibes of this fossil, suffuses the radiating pulsations turn that activates the base chakra to equilibrate the physical torso along with the spiritual torso. 
Trilobites were a very diverse group of extinct marine arthropods. They first appeared in the fossil record in the Early Cambrian (521 million years ago) and went extinct during the Permian mass extinction (250 million years ago). They were one of the most successful of the early animals on our planet with over 25k described species, filling nearly every evolutionary niche. Due in large part to a hard exoskeleton (shell), they left an excellent fossil record.