The pendant is a moss agate slice and hangs from a double strand section of rectangular serpentine stone and fire agate nuggets. 
 
Agate and Serpentine are both earth stones with metaphysical properties associated with nature and earth. The moss agate in particular has strong ties to Mother Nature and Fire Agate is said to ignite passion and creativity and love for life, but with balance and stability. The patterns of serpentine is thought to resemble snakes, giving the stone it's name and also supporting change and rebirth, such as a shedding of one's skin if you will.
 
The earrings are serpentine and fire agate set on gold plated brass fishhook ear wires.