This was a Christmas gift for my fiancee. It gets its name from its inclusion of each type of rock. Opalized clam fossil(sedimentary), watermelon tourm slice (igneous), polished green kyanite with a blue strip down the middle (metamorphic) and zincite (crystallized from a natural disaster).
this was my christmas gift for my fiancee zach. it includes representatives from each type of rock: igneous = watermelon tourmaline, metamorphic = polished kyanite, sedimentary = opalized clam fossil, and man induced/natural disaster = zincite